Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on May 3, 1995.
As of Sunday, December 9th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
877001988-1993 GM 7.4L C2500/ C3500 2wd truck with A.I.R.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-182-15
  • Executive Order 182-15 / D182-15
  • ARB # D-182-15
  • Executive Order No: D-182-15
  • C.A.R.B. No. D-182-15
  • Resolution D-182-15
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-182-15 PDF

D-182-15 Document:



Cuce




                                                                   (Page 1 of 2)

                                    State of California
                                    AIR RESOURCES BOARD


                                  EXECUTIVE ORDER D—182—15
                         Relating to Exemptions Under Section 27156
                                    of the Vehicle Code


                                    WALKER MANUFACTURING
                                  "TUBULAR EXHAUST HEADER"

       WHEREAS, Vehicle Code Sections 27156 and 38391, and Title 13, California
       Code of Regulations (hereafter "CCR"), authorize the California Air
       Resources Board (ARB} and its Executive Officer to exempt add—on and
       modified parts from the prohibitions of Vehicle Code Section 27156.

       WHEREAS, Walker Manufacturing   of 2701 N. Dettman Road, Jackson, Michigan
       49201, has applied to the ARB   for exemption from the prohibitions in Vehicle
       Code Sections 27156 and 38391   for their aftermarket tubular exhaust header
       for the models and model—year   GM and Ford vehicles shown in the appendix.

       WHEREAS, pursuant to the authority vested in the Executive Officer by Health
       and Safety Code Section 39515 and in the Chief, Mobile Source Division by
       Health and Safety Code Section 39516 and Executive Order G—45—9, the ARB
       finds that the above aftermarket header complies with the California Vehicle
w*




       Ccode Section 27156 and Title 13, California Code of Requlations. Emission
       performance of the header was based on comparative tests conducted at an
       independent vehicle test laboratory.

       IT IS HEREBY RESOLVED that the above exhaust header is exempt from the
       prohibitions in Vehicle Code Section 27156 for installation on the approved
       application vehicles subject to the following conditions:

          1.   No changes are permitted to the header as described in the
               application for exemption.   Any changes to the header or any of its
               components, and other factors addressed in this order must be
               evaluated and approved by the ARB prior to marketing in California.

          2.   Marketing of the header using identification other than those shown
               in this Executive Order or marketing of the header for application
               other than the one listed in the appendix shall be prohibited unless
               prior approval is obtained from the ARB.  Exemption of this product
               shall not be construed as an exemption to sell, offer for sale, or
               advertise any components of the header as individual devices.


     WALKER MANUFACTURING                                     EXECUTIVE ORDER D—182—15
ts




     "TUBULAR EXHAUST HEADER"                                 (Page 2 of 2)




        3.   Any oral or written references to this Executive Order or its content
             by Walker Manufacturing, its principals, agents, employees,
             distributors, dealers, or other representatives must include the
             disclaimer that the Executive Order or the exemption it provides is
             not an endorsement or approval of any emissions reduction claims for
             the header and is only a finding that the header is exempt from the
             prohibitions of Vehicle Code Section 27156.

     THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
     APPROVAL, OR ANY OTHER TYPE OR ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY
     CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
     BENEFITS OF THE TUBULAR EXHAUST HEADER.

     Violation of any of the above conditions shall be grounds for revocation of
     this order.  The order may be revoked only after ten day written notice of
     intention to revoke it, during which period the holder of the order may
     request in writing a hearing to contest the proposed revocation.  If a
     hearing is requested, it shall be held within ten days of receipt of the
     request, and the order may not be revoked until a determination is made,
     after the hearing, that grounds for revocation exist.

     Executed at El Monte,   California,   this     iltflgg;     May,   1995.




                                                  Mobile Source Division


                                                   APPENDIX



                                      Walker Tubular Exhaust Header




     PartNumber                           Vehicle Application
                         *
     87700 (w/A.I.R.)            /   1988—93   GM 7.4L C2500/C3500 2WD truck
                             +
     87706 (wo/A.I.R.)               1990 GM   7.4L C1500, 454SS 2WD truck

                                     1988—93 GM 7.41L 02500/C3560 4WD truck

     87701                           1986—92 Ford 5.0L F150/F250 2WD truck

                                     1985—92 Ford Bronco 5.0L 2WD

                                     1986—92 Fora 5.0L FlSO/FZSO 4WD truck

                                     1985—92 Ford Bronco 5.0L 4WD
*~




     87702 (w/A.I.R.)/               1988—93   GM 5.0—5.7L C1500/C2500 2WD truck

     87707   (wo/A.I.R.)             1988—93 GM 5.0—5.7L K1500/K2500 4WD truck

     87703                           1988—93 Ford 7.5L FlSQ/FZSO/F350 2WD truck

                                     1988—93 Ford 7.5L F1S50O/F250/F350 4WD truck

     87704/85117/86117               1986—93 Ford Mustang 5.0L

     87705                           1982—87 GM S.OL Camaro/Firebira

                                     1992 GM Camaro 228 5.0L TPI

                                     1988—92 GM éamaro RS 5.0L TPI

                                     1991—92 GM Firebird 5.0L TPI

                                     1988—92 GM Firebird Formula 5.0L TPI




     * w/A.I.R.         with Air Injection Reaction
                   1t




     + wo/A.I.R.        without Air Injection Reaction


                         State of California
                         AIR RESOURCES     BOARD




EVALUATION OF WALKER MANUFACTURING TUBULAR EXHAUST HEADER FOR EXEMPTION
    FROM THE PROHIBITIONS IN VEHICLE CODE SECTIONS 27156 AND 38391,
              AND TITLE 13, CALIFORNIA CODE OF REGULATIONS




                                May 1995


         EVALUATION OF WALKER MANUFACTURING TUBULAR EXHAUST HEADER FOR EXEMPTION
             FROM THE PROHIBITIONS IN VEHICLE CODE SECTIONS 27156 AND 38391,
                       AND TITLE 13, CALIFORNIA CODE OF REGULATIONS
L0m.,




                                            by
                                  Mobile Source Division



                                   9528 Telstar Avenue
                                 El Monte, CA  91731—2990




        (This report has been reviewed by the staff of the California Air Resources
        Board and approved for publication.  Approval does not signify that the
        contents necessarily reflect the views and policies of the Air Resources
        Board, nor does mention of trade names or commercial products constitute
        endorsement or recommendation for use.)


                                          SUMMARY




              Walker Manufacturing (Walker) of 2701 N. Dettman Road, Jackson,

      Michigan 49201, has applied for an exemption from the prohibitions in

      Vehicle Code Sections 27156 and 38391,    for their tubular exhaust header with

      part numbers and vehicle applications shown in the appendix.    Design changes

      to the original equipment manufacturer (OEM) header include use of low

      carbon steel and stainless stsel instead of cast iron.    No modification to

      vehicle manufacturer‘s tune—up specifications is required in order to

      install the header.

              Emissions data submitted from comparative CVS—75 tests show that the

      tubular exhaust header meets the requirements of Vehicle Code Sections 27156

      and 38391.   Based on the above,   the staff recommends that the exemption be

      granted as requested and that Executive Order D—182—15 be issued.
Te,


                                coNTENTS

                                           Page Number

SUMMARY                                         i

coNTENTS                                       ii

I.         INTRODUCTION                         1

II.        conNCcLUSTON                         1

II1.       RECOMMENDATION                       1

IV.        DEVICE DESCRIPTION                   1

v.         PEVICE EVALUATION                    2

           APPENDIX                             3


     EVALUATION OF WALKER MANUFACTURING TUBULAR EXHAUST HEADER FOR EXEMPTION
          FROM THE PROHIBITIONS IN VEHICLE CODE SECTIONS 27156 AND 38391,
                   AND TITLE 13, CALIFORNIA CODE OF REGULATIONS



I.         INTRODUCTION

          Walker Manufacturing (Walker) of 2701 N. Dettman Road, Jackson,

Michigan 49201, has applied for an exemption from the prohibitions in

Vehicle Code Sections 27156 and 38391 to allow the installation of their

tubular aftermarket exhaust header on the model and model—year vehicles

shown in the appendix.

II.        CcONCLUSION

          The applicant has submitted all the required information, and based

on the submitted exhaust emissions test data,      the staff concludes that the

tubular exhaust header meets the criteria set forth in Vehicle Code Section

27156 and Title 13, California Code of Regulations.

III.       RECOMMENDATION

           The staff recommends that the exemption be granted as requested and

that Executive Order No.    D—182—15 be issued,   permitting the advertisement,

sale and installation of the new aftermarket tubular exhaust header.

IV.        DEVICE DESCRIPTION

           The tubular exhaust header is constructed using two different steel,

18 gage low carbon steel for vehicles powered by an engine with a

displacement less than 7.4L, and stainless steel for vehicles powered by an

engine with a displacement more than 7.4L.        The header is treated with an

aluminum based coating to prevent corrosion.       The tubular header replaces

the OEM cast iron exhaust manifold, and provides for reconnection of all

emission control system.        Four primary tubes from each side of the exhaust

are merged into one secondary pipe on the sides.       The two secondary pipes

are then merged further downstream into one single exhaust pipe and then

connected to the catalytic converter.       The applicant claims that their

design improves and optimizes the gas dynamics of the automobile engine


    exhaust.     No changes to vehicle manufacturer‘s tune—up specifications are
%




    required in order to install the tubular exhaust header.                   The header is sold

    with steel cross—over pipes, and complete installation instructions and kit.

    v.         DEVICE EVALUATION

               Walker Manufacturing has submitted test data from comparative CVS—75

    tests which were conducfied at Automotive Testing and Development Services,

    Inc.   (ATDS), Ontario, California.            The tests were conducted using a

    California certified 1993 7.4L GM C3500 heavy—duty truck, and a 1993 Ford

    Mustang 5.0L.        A cold—start CVS—75 test was first conducted in the baseline

    (unmodified) configuration followed by another cold—start CVS—75 with the

    tubular exhaust header installed.              Due to heavy workload at the ARB‘s

    Haagen—Smit Laboratory,       confirmatory tests were not conducted by the ARB.

    The exemption of the header is,            therefore,    based on the test data generated

    by ATDS, an independent test laboratory.                The test data are shown below.


                                          ATDS,      ONTARIO
    Mustang 5.0L                         THC                       co                NOx
    Baseline (unmodified)       (g/mi)    0.235                0. 660            0. 840
    Dbevice  {modified)         (g/mi)    O0.191               0.626             0.643
    Change      (g/mi)                   —0.044              —0.034             —0.197
    % Change                              19                   5                 24

    GM Truck 7.4L
    Baseline (unmodified)}      (g/mi)    0.450                9 .325            3.033
    Device   {modified)         (g/mi)    0.392                8 .676            2.985
    Change      (g/mi)                   —0.058              —0 .649            —0 .048
    % Change (g/mi)                       13                   7                 2


    The data show that the installation of Walker Manufacturing‘s tubular

    exhaust header will not cause an adverse effect in HC,               CO,    and NOx

    emissions.


    caties,




                                                        APPENDIX




                                          Walker Tubular Exhaust Header




              Part Number                     Vehicle Application
                                 *
              87700 (w/A.I.R.)       /   1988—93   GM 7.4L C2500/C3500 2WD truck

              87706 (wo/A.I.R.)"         1990 M    7.4L C1500, 454§SS 2WD truck

                                         1988—93 GM 7.4L C2500/C3500 4WD truck

              87701                      1986—92 Ford 5.0L F150/FP250 2WD truck

                                         1985—92 Ford Bronco 5.0L 2WD

                                         1986—92 Ford 5.0L F150/F250 4WD truck

                                         1985—92 Ford Bronco 5.0L 4WD
      9nn




              87702 (w/A.I.R.)/          1988—93 GM 5.0—5.7L C1500/C2500 2WD truck

              87707 (wo/A.I.R.)          1988—93 GM 5.0—5.7L K1500/K2500 4WD truck

              87703                      1988—93 Ford 7.5L F150/F250/F350 2WD truck

                                         1988—93 Ford 7.5L F150/F250/FP350 4WD truck

              87704/85117/86117          1986—93 Ford Mustang 5.0L

              87705                      1982—87 GM 5.0L Camaro/Firebird

                                         1992 GM Camaro Z28 5.0L TPI

                                         1988—92 GM Camaro RS 5.0L TPI

                                         1991—92 GM Firebird 5.0L TPI

                                         1988—92 GM Firebird Formula 5.0L TPI




              * w/A.I.R.     with Air Injection Reaction

              + wo/A.I.R.    without Air Injection Reaction
<" Biate,



Document Created: 2005-09-01 12:15:21
Document Modified: 2005-09-01 12:15:21

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