Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 7, 1991.
As of Sunday, August 25th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
3501975-1979 Chevrolet Corvette equipped with a 283-400 CID engine

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-200-3
  • Executive Order 200-3 / D200-3
  • ARB # D-200-3
  • Executive Order No: D-200-3
  • C.A.R.B. No. D-200-3
  • Resolution D-200-3
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-200-3 PDF

D-200-3 Document:

                                                    (Page 1 of 2)   ~             ;

                             State of California
                             AIR RESOURCES BOARD
                      —    —EXECUTIYE QORDER 0—200—3
              Re]atlng to Exemptions Under Section 27156
                          °_ of the YVehicle Code

                            BOLG THGRLEY HEADERS, INC.
                            0 . EXHAUST HEADERS
                          . (PIN‘S350, 3?3? AND 308)

    Qi;?to the’author1ty vested %n the Air Resources Board by Section 27156

         o the‘ authorxty vested in the undersigned by Sections 39515 and
          v Health and Safety Code and Executive Order 6—45—5;
   DRDERED‘AND RESQLVED That:the installaticn of the Doug Thorley
    §$€: header part nos. 359@ 37587 and 308 manufactured by Doug Thorley
             of1561 Commerce Street, Corona, CA 91720, has been found not
          ”geeffectiveneg.iof the appllcable vehicle poiiution control
            herefore, is sxempt from the prohibitions of Section 27156 of
                  F the fol]awlngnonwfeedback vehicie app]zcat1ons                    ;

     xhaust Header:PlN 350 e
       ”'1975 1972 model-year Chevro]et Corvette equipped with a 283—400

               1977 model—year Chevrolet Nava {axc]udxng Malibu} equipped
               a 283—~400"C1D, engine _ °
                                  a    oletCamaralz28 and Chevelle!E} Camino/ °

                          ;a 305'01 eng{ne
   hExh§ust Header P/N 308 —            '
     5    1975—1979 mode]-yearChevroletCamarolz28 equipped with a 283—409
         CID engdine ©
         ©1975—1977 Chevrolet Cheve]leiE} Caminc?/ Malibu equipped with a
         283—400 CID englne

Th1s Executlve Order 15 valld provxded that1nsta1lat1on 1n5tructzons for
these headers will not recommend tuningthe vehicle to specifications
 \fferentfrcm those submitted by floug Thorley Headers, Inc.

DGUG:THGRLEY fiEADERS INC                          EXECUTIYVE ORDER D—200—3
     $T HEADER PIN S 358. 375Y AND 308   _        {(Page 2 of 2)

.Chan a5.made to the dasign or 0perating conditions of these exhaust headers,
  cexempt by the Air Resources Board, which adversely affect the performance
     ' ehic\e $ poi!utien contro! system shall invalidate this Exscutive

                       aders may have onany Warranty e&ther expressed or
                          ‘nufacturer        is

             R¢                ENDORSEMENTBYTHE AIR RESOURCES BOARO oF

                            C as “Approved by the Air Resaurces Board" may be
                 t. tc theact1on taken hereznin any advertxs1ngor cther

                        ‘and ‘heorder.may natberevnkeduntil a
                          ingthatgroundsfcr revocatlon ex:st

                                                    of August 1991.

                                         Ass1§.ant Division Chief
                                         Mobile Source Division

Document Created: 2005-09-01 12:41:40
Document Modified: 2005-09-01 12:41:40

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