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Tenneco Automotive Adjusts Third Quarter 2003 Financial Results

LAKE FOREST, Ill., Nov. 13, 2003 -- Tenneco Automotive announced today that the company's third quarter results, as reported on October 21, 2003, understated net income by $1 million and earnings per diluted share (EPS) by 1-cent and overstated revenue and earnings before interest and taxes (EBIT) for the quarter by $1 million.

In filing its third quarter report on Form 10-Q today, the company reported third quarter 2003 net income of $4 million, an increase from $3 million as announced on October 21, 2003, and earnings per share of 10-cents, an increase from previously reported 9-cents. The company reported third quarter revenue of $914 million, versus $915 million as previously reported, and the company's EBIT in the quarter was $38 million, down from $39 million as originally reported.

These changes were made as a result of two adjustments. The first adjustment was identified in Germany during a routine monthly review of vehicle platform and customer financial performance. The revenue generated from one particular platform was not recorded properly during a period in the quarter when the company was transitioning its supply of product from one facility to a newly opened manufacturing facility. With the adjustment, European revenue for third quarter 2003 was $344 million versus the previously reported $345 million, and European EBIT was a loss of $3 million instead of a loss of $2 million.

The second adjustment related to the write-off of debt issuance costs by the company in connection with the refinancing of some of its debt earlier this year. The company reported lower interest expense of $2 million following re-examination of the calculation of the write-off.

Third quarter 2003 financial statements and reconciliations of GAAP to non-GAAP results reflecting the adjusted results are attached.

Tenneco Automotive is a $3.5 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,600 employees worldwide. Tenneco Automotive is one of the world's largest producers and marketers of ride control and exhaust systems and products, which are sold under the Monroe(R) and Walker(R) global brand names. Among its products are Sensa-Trac(R) and Monroe Reflex(R) shocks and struts, Rancho(R) shock absorbers, Walker(R) Quiet-Flow(R) mufflers and DynoMax(R) performance exhaust products, and Monroe(R) Clevite(R) vibration control components.

            TENNECO AUTOMOTIVE INC. AND CONSOLIDATED SUBSIDIARIES
                         STATEMENTS OF INCOME (LOSS)
                                  Unaudited
                       NINE MONTHS ENDED SEPTEMBER 30,
                (Millions except share and per share amounts)

                                        2003               2002
  Net sales and operating revenues:    $2,833             $2,613

  Costs and Expenses
     Cost of Sales (exclusive of
      depreciation shown below)         2,249 (a)          2,058 (d)
     Engineering, Research and
      Development                          50                 49
     Selling, General and
      Administrative                      276                271 (e)
     Depreciation and Amortization of
      Other Intangibles                   120                104
            Total Costs and Expenses    2,695              2,482

  Gain on sale of assets                  -                   11 (f)
  Loss on sale of receivables              (1)                (2)
  Other Income (Loss)                      (1)                (2)
  Total Other Income (Loss)                (2)                 7

  Income before Interest Expense,
   Income Taxes, and Minority Interest
     North America                        109 (a)            108 (d) (e)
     Europe                                 7 (a)             15 (d) (e) (f)
     Other                                 20                 15
                                          136                138
  Less:
     Interest expense (net of
       interest capitalized)              103 (b)            108
     Income tax expense (benefit)          (1)(c)              6 (g)
     Minority interest                      5                  2
  Income before Cumulative Effect of
     Change in Accounting Principle        29                 22

  Cumulative Effect of Change in Accounting
   Principle, net of income tax            -                (218)

  Net income (loss)                       $29              $(196)

  Average common shares outstanding:
     Basic                               40.3               39.8
     Diluted                             41.5               41.7

  Earnings (loss) per share of common
   stock:
     Basic-
        Before Cumulative Effect of
         Change in Accounting
         Principle                      $0.72              $0.56
        Cumulative Effect of Change in
         Accounting Principle             -                (5.48)
                                        $0.72             $(4.92)

     Diluted-
        Before Cumulative Effect of
         Change in Accounting
         Principle                      $0.70              $0.53
        Cumulative Effect of Change in
         Accounting Principle             -                (5.48)
                                        $0.70             $(4.95)

  (a)  Includes restructuring and restructuring related charges of
       $7 million pre-tax, $4 million after-tax or $0.11 per share.  The
       entire charge is recorded in cost of sales.  Geographically,
       $3 million is recorded in North America and $4 million in Europe.
  (b)  Includes a pre-tax expense of $3 million, $2 million after-tax or
       $.05 per share related to debt issuance costs that were deferred on
       the senior debt we paid down with the proceeds of the $350 million
       bond offering.
  (c)  Includes a $14 million or $.36 per share tax benefit related to the
       resolution of several tax issues.
  (d)  Includes restructuring and restructuring related charges of
       $6 million pre-tax, $3 million after-tax or $0.08 per share.  The
       entire charge is recorded in cost of sales.  Geographically,
       $3 million is recorded in  both North America and Europe.
  (e)  Includes costs associated with the amendment of the senior debt
       agreement of $2 million pre-tax, $1 million after-tax or $0.03 per
       share. The entire charge is recorded in SG&A.  Geographically,
       $1 million is recorded in both North America and Europe.
  (f)  Includes a gain on the sale of a UK facility of $11 million pre-tax,
       $5 million after-tax or $0.13 per share.  Geographically, all of the
       gain is recorded in Europe.
  (g)  Includes a $6 million or $.17 per share tax benefit related to the
       resolution of several tax issues.

            TENNECO AUTOMOTIVE INC. AND CONSOLIDATED SUBSIDIARIES
                         STATEMENTS OF INCOME (LOSS)
                                  Unaudited
                      THREE MONTHS ENDED SEPTEMBER 30,
                (Millions except share and per share amounts)

                                         2003              2002
  Net sales and operating revenues:      $914              $856

  Costs and Expenses
     Cost of Sales (exclusive of
      depreciation shown below)           727 (a)           675 (d)
     Engineering, Research and
      Development                          18                18
     Selling, General and
      Administrative                       91                85
     Depreciation and Amortization of
      Other Intangibles                    40                35
            Total Costs and Expenses      876               813

  Loss on sale of receivables             -                  (1)
  Other Income (Loss)                     -                  (2)
  Total Other Income (Loss)               -                  (3)

  Income (Loss) before Interest Expense,
   Income Taxes, and Minority Interest
     North America                         32                36 (d)
     Europe                                (3)(a)            (1)(d)
     Other                                  9                 5
                                           38                40
  Less:
     Interest expense (net of
       interest capitalized)               34 (b)            36
     Income tax expense (benefit)          (2)(c)            (2)(e)
     Minority interest                      2                 1

  Net income                               $4                $5

  Average common shares outstanding:
     Basic                               40.6              39.8
     Diluted                             42.2              42.0

  Earnings (loss) per share of common
   stock:
     Basic-                             $0.11             $0.13

     Diluted-                           $0.10             $0.13

  (a)  Includes restructuring related charges of $1 million pre-tax,
       $1 million after-tax or $0.02 per share.  The entire charge is
       recorded in cost of sales.  Geographically all of the charge is
       recorded in Europe.
  (b)  Includes a pre-tax reduction of $2 million, $1 million after-tax or
       $.02 per share related to debt issuance costs that were deferred on
       the senior debt we paid down with the proceeds of the $350 million
       bond offering.
  (c)  Includes a $3 million or $.09 per share tax benefit related to the
       resolution of outstanding  tax issues.
  (d)  Includes restructuring and other charges of $3 million pre-tax,
       $2 million after-tax or $0.04 per share.  The entire charge is
       recorded in cost of sales.  Geographically, $1 million is recorded in
       North America and $2 million in Europe.
  (e)  Includes a $2 million or $.06 per share tax benefit related to a
       change in the estimated effective tax rate.

            TENNECO AUTOMOTIVE INC. AND CONSOLIDATED SUBSIDIARIES
                                BALANCE SHEET
                                 (Unaudited)
                                  (Millions)

                                                September 30,   December 31,
                                                     2003             2002
   Assets

        Cash and Temporary Cash Investments           $63               $54

        Receivables, Net                              483               409

        Inventories                                   338               352

        Other Current Assets                          160               151

        Investments and Other Assets                  538               512

        Plant, Property, and Equipment, Net         1,067             1,026

        Total Assets                               $2,649            $2,504

  Liabilities and Shareowners' Equity

        Short-Term Debt                               $18              $228

        Accounts Payable                              569               505

        Accrued Taxes                                  42                40

        Accrued Interest                               41                23

        Other Current Liabilities                     216               220

        Long-Term Debt                              1,386             1,217

        Deferred Income Taxes                          71               103

        Deferred Credits and Other Liabilities        268               243

        Minority Interest                              21                19

        Total Shareholders' Equity                     17               (94)

        Total Liabilities and Shareholders' Equity $2,649            $2,504

            Tenneco Automotive Inc. and Consolidated Subsidiaries
                           Statement of Cash Flows
                                 (Unaudited)
                                 (Millions)

                                                       Nine Months Ended
                                                         September 30,
                                                     2003              2002
  Operating activities:
    Net income (loss) before cumulative
     effect of change in accounting
     principle, net of tax                           $29               $22
    Adjustments to reconcile income (loss)
     to net cash provided (used) by
     operating activities -
      Depreciation and amortization                  120               104
      Deferred income taxes                          (17)              (17)
      (Gain)/loss on sale of businesses
       and assets, net                                 1                (9)
      Changes in components of working capital -
        (Inc.)/dec. in receivables                   (46)              (25)
        (Inc.)/dec. in inventories                    43                11
        (Inc.)/dec. in prepayments and
         other current assets                          3               (20)
        Inc./(dec.) in payables                       31                76
        Inc./(dec.) in taxes accrued                 (25)                3
        Inc./(dec.) in interest accrued               19                14
        Inc./(dec.) in other current liabilities     (15)               10
      Other                                           19                (1)
  Net cash provided (used) by operating activities   162               168

  Investing activities:
    Net proceeds from sale of assets                   4                20
    Expenditures for plant, property & equipment     (83)              (86)
    Investments and other                             (5)               10
  Net cash provided (used) by investing
   activities                                        (84)              (56)

  Net Cash provided (used) before
   financing activities                               78               112

  Financing activities:
    Proceeds from capital contributions                1                 -
    Issuance of long-term debt                       350                 1
    Debt issuance costs on long-term debt            (13)                -
    Retirement of long-term debt                    (277)              (89)
    Net inc./(dec.) in short-term debt excluding
     current maturities on long-term debt           (119)              (22)
    Other                                             (1)                -
  Net cash provided (used) by financing activities   (59)             (110)

  Effect of foreign exchange rate changes on
   cash and temporary cash investments               (10)               (9)

  Inc./(dec.) in cash and temporary cash
   investments                                         9                (7)
  Cash and temporary cash investments,
   January 1                                          54                53
  Cash and temporary cash investments,
   September 30                                      $63               $46

  Cash paid during the period for interest           $79               $94
  Cash paid during the period for income taxes       $41               $22

                            TENNECO AUTOMOTIVE
           RECONCILIATION OF GAAP(A) RESULTS TO NON-GAAP RESULTS
                                 Unaudited

                                             Q3 2003          Q3 2002
                                         Amount Per Share  Amount Per Share
  Net Income (GAAP measure)                 $4    $0.10      $5    $0.13

  After tax adjustments (reflects non-
   GAAP measures):
     Restructuring and restructuring
      related expenses                       1     0.02       2     0.04
     Tax return to accrual adjustment       (3)   (0.09)    -        -
     Debt issuance cost write off
      adjustment                            (1)   (0.02)    -        -
     Effective tax rate change             -        -        (2)   (0.06)

  Non-GAAP earnings measure(B)              $1    $0.01      $5    $0.11

                                                    Q3 2003
                                         North            Rest of
                                        America   Europe   World    Total
  Net income (loss)                                                   $4

  Minority interest                                                    2

  Income tax expense (benefit)                                        (2)

  Interest expense (net of interest
   capitalized)                                                       34

  Income(loss) before interest expense,
   income taxes and minority interest
   (GAAP measure)                          $32      $(3)     $9       38

  Depreciation and amortization of
   other intangibles                        22       15       3       40

  Total EBITDA(C)                          $54      $12     $12      $78

                                                    Q3 2002
                                         North            Rest of
                                        America   Europe   World    Total
  Net income (loss)                                                   $5

  Minority interest                                                    1

  Income tax expense (benefit)                                        (2)

  Interest expense (net of interest
   capitalized)                                                       36

  Income(loss) before interest expense,
   income taxes and minority interest
   (GAAP measure)                          $36      $(1)     $5       40

  Depreciation and amortization             22       10       3       35

  Total EBITDA(C)                          $58       $9      $8      $75

  (A) Generally Accepted Accounting Principles

  (B) Tenneco Automotive presents the above reconciliation of GAAP to
      non-GAAP results in order to reflect the results for the third
      quarters of 2003 and 2002 in a manner that allows a better
      understanding of the results of operational activities separate from
      the financial impact of decisions made for the long-term benefit of
      the company.  Adjustments similar to the ones reflected above have
      been recorded in earlier periods, and similar types of adjustments can
      reasonably be expected to be recorded in future periods.  Using only
      the non-GAAP earnings measure to analyze earnings would have material
      limitations because its calculation is based on the subjective
      determinations of management regarding the nature and classification
      of events and circumstances that investors may find material.
      Management compensates for these limitations by utilizing both GAAP
      and non-GAAP earnings measures reflected above to understand and
      analyze the results of the business.  The company believes investors
      find  the non-GAAP information helpful in understanding the ongoing
      performance of operations separate from items  that may have a
      disproportionate positive or negative impact on the company's
      financial results in any particular period.

  (C) EBITDA represents net income before interest expense, income taxes,
      minority interest and depreciation and amortization.  EBITDA is
      not a calculation based upon generally accepted accounting
      principles.  The amounts included in the EBITDA calculation,
      however, are derived from amounts included in the historical
      statements of income data.  In addition, EBITDA should not be
      considered as an alternative to net income or operating income as an
      indicator of the company's operating performance, or as an alternative
      to operating cash flows as a measure of liquidity.  Tenneco Automotive
      has presented EBITDA because it regularly reviews EBITDA as a measure
      of the company's ability to incur and service debt.  In addition,
      Tenneco Automotive believes its debt holders utilize and analyze our
      EBITDA for similar purposes.  Tenneco Automotive also believes EBITDA
      assists investors in comparing a company's performance on a
      consistent basis without regard to depreciation and amortization,
      which can vary significantly depending upon many factors.  However,
      the EBITDA measure presented may not always be comparable to similarly
      titled measures reported by other companies due to differences in the
      components of the calculation.

                            TENNECO AUTOMOTIVE
           RECONCILIATION OF GAAP(a) RESULTS TO NON-GAAP RESULTS
                                 Unaudited

                                            YTD 2003          YTD 2002
                                        Amount Per Share  Amount Per Share
  Net Income before Cumulative Effect
   of Change in Accounting Principle
   (GAAP measure)                          $29    $0.70     $22    $0.53

  After tax adjustments (reflects non-
   GAAP measures):
     Restructuring and restructuring
      related expenses                       4     0.11       3     0.08
     Tax adjustments                       (14)   (0.36)     (6)   (0.17)
     Debt issuance cost write off            2     0.05     -        -
     Gain on sale of York facility         -        -        (5)   (0.13)
     Amendment fee                         -        -         1     0.03

  Non-GAAP earnings measure(B)             $21    $0.50     $15    $0.34

                                                    YTD 2003
                                         North            Rest of
                                        America   Europe   World    Total
  Net income (loss)                                                  $29

  Minority interest                                                    5

  Income tax expense (benefit)                                        (1)

  Interest expense (net of interest
   capitalized)                                                      103

  Income(loss) before interest expense,
   income taxes and minority interest
   (GAAP measure)                         $109       $7     $20      136

  Depreciation and amortization of
   other intangibles                        68       43       9      120

  Total EBITDA(C)                         $177      $50     $29     $256

                                                    YTD 2002
                                         North            Rest of
                                        America   Europe   World    Total
  Net income (loss)                                                $(196)

  Cumulative effect of change in
   accounting principle, net of income
   tax                                                               218

  Minority interest                                                    2

  Income tax expense (benefit)                                         6

  Interest expense (net of interest
   capitalized)                                                      108

  Income(loss) before interest expense,
   income taxes and minority interest
   (GAAP measure)                         $108      $15     $15      138

  Depreciation and amortization             65       30       9      104

  Total EBITDA(C)                         $173      $45     $24     $242

  (A) Generally Accepted Accounting Principles

  (B) Tenneco Automotive presents the above reconciliation of GAAP to
      non-GAAP results in order to reflect the results for the first nine
      months of 2003 and 2002 in a manner that allows a better understanding
      of the results of operational activities separate from the financial
      impact of decisions made for the long-term benefit of the company.
      Adjustments similar to the ones reflected above have been recorded
      in earlier periods, and similar types of adjustments can reasonably be
      expected to be recorded in future periods.  Using only the non-GAAP
      earnings measure to analyze earnings would have material
      limitations because its calculation is based on the subjective
      determinations of management regarding the nature and classification
      of events and circumstances that investors may find material.
      Management compensates for these limitations by utilizing both GAAP
      and non-GAAP earnings measures reflected above to understand and
      analyze the results of the business.  The company believes investors
      find the non-GAAP information helpful in understanding the ongoing
      performance of operations separate from items  that may have a
      disproportionate positive or negative impact on the company's
      financial results in any particular period.

  (C) EBITDA represents net income before cumulative effect of change in
      accounting principle, interest expense, income taxes, minority
      interest and depreciation and amortization.  EBITDA is not a
      calculation based upon generally accepted accounting principles.  The
      amounts included in the EBITDA calculation, however, are derived from
      amounts included in the historical statements of income data.  In
      addition, EBITDA should not be considered as an alternative to net
      income or operating income as an indicator of the company's operating
      performance, or as an alternative to operating cash flows as a
      measure of liquidity.  Tenneco Automotive has presented EBITDA
      because it regularly reviews EBITDA as a measure of the company's
      ability to incur and service debt.  In addition, Tenneco Automotive
      believes its debt holders utilize and analyze our EBITDA for similar
      purposes. Tenneco Automotive also believes EBITDA assists investors in
      comparing a company's performance on a consistent basis without
      regard to depreciation and amortization, which can vary
      significantly depending upon many factors.  However, the EBITDA
      measure presented may not always be comparable to similarly titled
      measures reported by other companies due to differences in the
      components of the calculation.

                             TENNECO AUTOMOTIVE
             RECONCILIATION OF GAAP RESULTS TO NON-GAAP RESULTS
                                 Unaudited

                                                 Q3 2003

                                                                    Revenues
                                                           Pass-   Excluding
                                                          through   Currency
                                                           Sales       and
                                               Revenues   Excluding   Pass-
                                     Currency  Excluding  Currency   through
                           Revenues   Impact   Currency    Impact     Sales

  North America Aftermarket
    Ride Control             $78        $-       $78          $-      $78
    Exhaust                   45         -        45           -       45
    Total North America
     Aftermarket             123         -       123           -      123

  North America Original
   Equipment
    Ride Control             102         -       102           -      102
    Exhaust                  227         5       222          67      155
    Total North America
     Original Equipment      329         5       324          67      257

  Total North America        452         5       447          67      380

  Europe Aftermarket
    Ride Control              45         7        38           -       38
    Exhaust                   47         7        40           -       40
    Total Europe Aftermarket  92        14        78           -       78

  Europe Original Equipment
    Ride Control              65         8        57           -       57
    Exhaust                  187        26       161          52      109
    Total Europe Original
     Equipment               252        34       218          52      166

  Total Europe               344        48       296          52      244

  Asia                        42         -        42          15       27

  South America               31         2        29           4       25

  Australia                   45         9        36           4       32

  Total Rest of World        118        11       107          23       84

  Total Tenneco Automotive  $914       $64      $850        $142     $708

                                                     Q3 2002

                                                                    Revenues
                                                           Pass-   Excluding
                                                          through   Currency
                                                           Sales       and
                                               Revenues   Excluding   Pass-
                                     Currency  Excluding  Currency   through
                           Revenues   Impact   Currency    Impact     Sales

  North America Aftermarket
    Ride Control             $80        $-       $80          $-      $80
    Exhaust                   49         -        49           -       49
    Total North America
     Aftermarket             129         -       129           -      129

  North America Original
   Equipment
    Ride Control             101         -       101           -      101
    Exhaust                  236         -       236          74      162
    Total North America
     Original Equipment      337         -       337          74      263

  Total North America        466         -       466          74      392

  Europe Aftermarket
    Ride Control              39         -        39           -       39
    Exhaust                   47         -        47           -       47
    Total Europe Aftermarket  86         -        86           -       86

  Europe Original Equipment
    Ride Control              46         -        46           -       46
    Exhaust                  173         -       173          56      117
    Total Europe Original
     Equipment               219         -       219          56      163

  Total Europe               305         -       305          56      249

  Asia                        30         -        30           9       21

  South America               24         -        24           2       22

  Australia                   31         -        31           2       29

  Total Rest of World         85         -        85          13       72

  Total Tenneco Automotive  $856        $-      $856        $143     $713

     Tenneco Automotive presents the above reconciliation of revenues in
     order to reflect the trend in the company's sales, in various product
     lines and geographical regions, separately from the effects of doing
     business in currencies other than the U.S. dollar.  Additionally,
     pass-through catalytic converter sales include precious metals
     pricing, which may be volatile.  While Tenneco Automotive's original
     equipment customers assume the risk of this volatility, it impacts
     reported revenue.  Excluding pass-through catalytic converter sales
     removes this impact.  Tenneco Automotive uses this information to
     analyze the trend in revenues before these factors.  Tenneco
     Automotive believes investors find this information useful in
     understanding period to period comparisons in the company's revenues.

                              TENNECO AUTOMOTIVE
              RECONCILIATION OF GAAP RESULTS TO NON-GAAP RESULTS
                                  Unaudited

                                  Nine Months Ended September 30, 2003

                                                                    Revenues
                                                           Pass-   Excluding
                                                          through   Currency
                                                           Sales       and
                                               Revenues   Excluding   Pass-
                                     Currency  Excluding  Currency   through
                           Revenues   Impact   Currency    Impact     Sales

  North America Aftermarket
    Ride Control             $240       $-       $240         $-      $240
    Exhaust                   127        -        127          -       127
    Total North America
     Aftermarket              367        -        367          -       367

  North America Original
   Equipment
    Ride Control              336        -        336          -       336
    Exhaust                   731       10        721        229       492
    Total North America
     Original Equipment     1,067       10      1,057        229       828

  Total North America       1,434       10      1,424        229     1,195

  Europe Aftermarket
    Ride Control             133        23        110          -       110
    Exhaust                  137        23        114          -       114
    Total Europe Aftermarket 270        46        224          -       224

  Europe Original Equipment
    Ride Control             186        28        158          -       158
    Exhaust                  621        97        524        166       358
    Total Europe Original
     Equipment               807       125        682        166       516

  Total Europe             1,077       171        906        166       740

  Asia                       118         -        118         42        76

  South America               86        (7)        93          9        84

  Australia                  118        20         98         11        87

  Total Rest of World        322        13        309         62       247

  Total Tenneco
   Automotive             $2,833      $194     $2,639       $457    $2,182

                                    Nine Months Ended September 30, 2002

                                                                    Revenues
                                                           Pass-   Excluding
                                                          through   Currency
                                                           Sales       and
                                               Revenues   Excluding   Pass-
                                     Currency  Excluding  Currency   through
                           Revenues   Impact   Currency    Impact     Sales

  North America Aftermarket
    Ride Control            $256        $-       $256         $-      $256
    Exhaust                  147         -        147          -       147
    Total North America
     Aftermarket             403         -        403          -       403

  North America Original
   Equipment
    Ride Control             315         -        315          -       315
    Exhaust                  754         -        754        249       505
    Total North America
     Original Equipment    1,069         -      1,069        249       820

  Total North America      1,472         -      1,472        249     1,223

  Europe Aftermarket
    Ride Control             111         -        111          -       111
    Exhaust                  130         -        130          -       130
    Total Europe
     Aftermarket             241         -        241          -       241

  Europe Original Equipment
    Ride Control             136         -        136          -       136
    Exhaust                  521         -        521        160       361
    Total Europe Original
     Equipment               657         -        657        160       497

  Total Europe               898         -        898        160       738

  Asia                        77         -         77         26        51

  South America               78         -         78          7        71

  Australia                   88         -         88          4        84

  Total Rest of World        243         -        243         37       206

  Total Tenneco
   Automotive             $2,613        $-     $2,613       $446    $2,167

     Tenneco Automotive presents the above reconciliation of revenues in
     order to reflect the trend in the company's sales, in various product
     lines and geographical regions, separately from the effects of doing
     business in currencies other than the U.S. dollar.  Additionally, pass-
     through catalytic converter sales include precious metals pricing,
     which may be volatile.  While Tenneco Automotive's original equipment
     customers assume the risk of this volatility, it impacts reported
     revenue.  Excluding pass-through catalytic converter sales removes this
     impact.  Tenneco Automotive uses this information to analyze the trend
     in revenues before these factors.  Tenneco Automotive believes
     investors find this information useful in understanding period to
     period comparisons in the company's revenues.