Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 15, 2008.
As of Friday, May 24th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
See PDF1999 and older vehicles, See PDFThe Summit Industries, Inc.ÔÇÖs Thorley Headers are of a long tube style design. Installation may require the use of a connecting Y pipe. Both the exhaust header and Y pipe are manufactured out of 14 gage mild steel. On vehicles that are equipped with an oxygen sensor, the sensor is located either on the headerÔÇÖs collector or at the top of the Y pipe similar to the vehicles stock configuration.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-540-5
  • Executive Order 540-5 / D540-5
  • ARB # D-540-5
  • Executive Order No: D-540-5
  • C.A.R.B. No. D-540-5
  • Resolution D-540-5
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-540-5 PDF

D-540-5 Document:



                                     State of California
                                AIR RESOURCES BOARD
                               EXECUTIVE ORDER D—540—5

                       Relating to Exemptions Under Section 27156
                                    of the Vehicle Code

                                  Surnmit Industries, Inc.
                                      Thorley Headers

Pursuant to the authority vested in the Air Resources Board by Section 27156 of the
Vehicle Code; and

Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the
Health and Safety Code and Executive Order G—02—003;

IT IS ORDERED AND RESOLVED: That the instaliation of Thorley Headers
manufactured by Summit Industries, Inc. of 1220 Railroad Street, Corona, California
92882, has been found not to reduce the effectiveness of the applicable vehicle
pollution control system and, therefore, is exempt from the prohibitions of Section 27156
of the Vehicle Code for those applicable vehicles as listed in Exthibit A of this Executive
Order, excluding any vehicle certified to the Ultra Low Emission Vehicle (ULEV)
standards or equipped with a close coupled catalyst.

The Summit Industries,Inc.‘s Thorley Headers are of a long tube style design.
Installation may require the use of a connecting Y pipe. Both the exhaust header and Y
pipe are manufactured out of 14 gage mild steel. On vehicles that are equipped with an
oxygen sensor, the sensor is located either on the header‘s collector or at the top of the
Y pipe similar to the vehicles stock configuration.

This Executive Order is valid provided that installation instructions for this device will not
recommend tuning the vehicles to specifications different from those of the vehicle
manufacturer.     _

This Executive Order shall not apply to any Summit Industries, Inc.‘s Thorley Header
advertised, offered for sale, sold with, or installed on a new motor vehicle prior to or
concurrent with transfer to an ultimate purchaser.

Changes made to the design or operating conditions of the device, as exempt by the Air
Resources Board, which adversely affect the performance of a vehicle‘s pollution control
system shall invalidate this Executive Order.

Marketing of this device using any identification other than that shown in this Executive
Order or marketing of this device for an application other than those listed in this
Executive Order shall be prohibited unless prior approval is obtained from the Air
Resources Board.

This Executive Order does not constitute any opinion as to the effect the use of the
device may have on any warranty either expressed or implied by the vehicle
manufacturer.


THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION,
ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE
AIR RESOURCES BOARD OF CLAIMS OF THE APPLICANT CONCERNING
ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF SUMMIT
INDUSTRIES, INC.‘S THORLEY HEADERS.

No claim of any kind, such as "Approved by the Air Resources Board," may be made
with respect to the action taken herein in any advertising or other oral or written
communication.

Violation of any of the above conditions shall be grounds for revocation of this order.
The order may be‘revoked only after ten days written notice of intention to revoke the
order, in which period the holder of the order may request in writing a hearing to contest
the proposed revocation. If a hearing is requested, it will 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         /5%gy of August 2008.



                                         ‘(*       Lm—wLx"~
                                               nette Hebert, Chief
                                  ~      Mobile Source Operations Division




            SUMMIT INDUSTRIES, INC. — THORLEY HEADERS — D—540—5


                                  Exhibit A


                     Chrysler Corporation Vehicles

Years     Applications                         Engines           Part#
1975—87   Vans/ "C" Motorhomes                273—360            106¥

1975—87   Vans/Motorhomes                     273—360            107¥

1975—91   Vans/Motorhomes                     361—440            109Y

1975—93   Trucks                              273—360            114Y

1975—93   Trucks                              273—360            115Y

1982—95   "A" Motorhomes                      273—360            147Y

1979—89   D50/ Arrow Pick—ups                 2.0L 4 eyl.        131

1979—82   D5Q0/ Arrow Pick—ups                2.0 & 2.6L 4cyl.   133Y

1975—91   Trucks                              361—440            134Y

1975—79   Dart; All Pass Cars                 273—360            153

1994—99   Dodge Ram Pick—up 2wd               488 V—10           160¥

1996—99   Dodge Ram Pick—up 2wd               488 V-IQ Cal       161Y

1994—95   Dodge Ram Pick—up 2wd               318—360            162Y

1996—99   Dodge Ram Pick—up 2wd               318—360            163Y

1994—95   Dodge Ram Pick—up 4wd               318—360            164Y

1996—99   Dodge Ram Pick—up 4wd               318—360            165¥

1995      Dodge "A" Motorhome                 488 V—10           170Y¢

1989—91   Dakota Pick—up                      273—360            189Y

1992—94   Dakota Pick—up                      273—360            190¥

1992—94   Dakota Pick—up                      273—360            191Y

1994      Dakota Pick—up                      273—360            192Y

1995      Dakota Pick—up                      273—360            193Y

1995      Dakota Pick—up                      273—360            194Y


                                     Exhibit A cont.

                          Chrysler Corporation Vehicles (Cont.)

Years     Applications                      Engines               Part#
1998—99   Durango 2wd                 |     318—360               196Y

1998—99   Durango 4wd                      318—360                197¥

1996—99   Pick—up 2wd                       318—360               196¥

1996—99   Pick—up 2wd                       318—360               197¥

1981—86   Jeep CJ                           4.0L &4.2L 6 cyl.     604Y

1975—86   Jeep CJ Series                    304—401               605¥

1981—86   Jeep CJ                           304—401               606¥

1975—82   Jeep CJ Series                    232—258               610

1981—93   Jeep J Series                     304—401               615Y

1975—79   Jeep Cherokee/Wagoneer            304—401               615Y

1981—93   Jeep J Series                     304—401               616¥

1981—93   Jeep J Series                     304—401               617Y

1980—82   Jeep Cherokee/Wagoneer            304—401               625Y

1993—95   Jeep Grand Cherokee               273—360               630Y

1987—92   Jeep Grand Cherokee               4.2L 6 cyl.           632Y

1987—90   Jeep Cherokee                     4.0L 6 cyl.           633Y

1991—99   Jeep:YJ,TJ,XJ,ZJ                  4.0L 6 cyl.           634Y

1987—95   Jeep Wrangler                     4.0L 6 cyl.           636Y

1996—99   Jeep Grand Cherokee               318—360               631Y


                                       Exhibit A cont.

                              Ford Motor Company Vehicles

Years      Applications                      Engines        Part#
1987—94    Motorhomes                        379—460        209Y
                      La

1975—79    Trucks                            379—460        210

1975—87    Trucks/Vans/ "C" Motorhomes       379—460        211Y or 216Y

1987 —97   Vans/ Motorhomes                  379—460        212Y

1985—89    Gillig Motorhomes                 379—460         213

1986—98    Trucks/Vans/Motorhomes             379—460        214Y

1981—82    Trucks                             351M—400M      215

1981—82    Trucks/Vans                        351M—400M      225

1977—79    Trucks                            —351M—400       230

1979—83    Courier Pick—ups                   1.8L 4cyl.     245Y

1980—85    Trucks/Vans/Bronco                 302—351 W      248Y

1986—95    Trucks/Vans/Bronco                 302W            249

1982—85    Ranger/Bronco II 2wd               2.3L 4cyl.     250Y¥

1986—98    Trucks F250/F350                   351W           251

1983—85    Ranger/Bronco II 4wd               2.8L 6cyl.     255

1990—95    Explorer/Bronco IU/Ranger          4.0L 6cyl.     257

1975—77    Bronco                             255—302W       263

1975—76    Trucks                             352—428        264

1975—78    Cougar; Pass Cars                  351/400        265

1980—95    Mustang/Capri                      255—302        285

1994—95    Mustang/Capri                      255—302        286

1975—78    Mustang/Capri                      255—302        287

1979—85    Mustang/Capri                      255—302        288

1996—98    Mustang/Capri                      255—302        290


                                      Exhibit A cont.

                                 General Motors Vehicles


Years       Applications                    Engines        Part#

1975—88     Trucks                           262—400       300Y

1996—99     Trucks                           350 Vortec    301Y

1996—99     Trucks                           350 Vortec    302Y

1991—95     Motorhomes                       366—454       303Y

1987—91     Trucks                           366—454       303¥

1987—91     Trucks                           366—454       304Y

1987—95     Motorhomes w/Allison trans.      366—454       305Y

1987—99     Motorhomes                       366—454       306Y

1996—99     Trucks                           350 Vortec    307Y

1975—79     Camaro/ Pass Cars                262—400       308

1999—2000   Trucks/Tahoe/Yukon/Suburban     4.8L & 5.3L    310¥

1975—95     Vans/ "C" Motorhomes             262—400       315Y

1981—95     Vans/ "C" Motorhomes             262—400       316Y

1928—95     Cars/Trucks                      262—400       317Y

1996—98     Trucks/Motorhomes                262—400       318Y

1975—77     Cutlass                          350—403       332

1975—79     Firebird                         350—455       332

1976—85     Trucks                           1.8L          335

1975—79     Firebird (Pont. Engine)          350—455        341

1975—81     Corvette                         262—400       350

1982—87     Trucks                           2.8L 6 cyl.   345

1985—95     Astro/Safari Vans                4.3L 6 cyl.   346

1988—95     Trucks/Vans                      4.3L 6 cyl     347

1988—95     Trucks                           4.3L 6 cyl.   348

1987—90     Reveon Motorhomes                 366—454       354Y


                                 Exhibit A cont.

                      General Motors Vehicles (Cont.)


Years       Applications                     Engines       Part#

1987—98     $10/815                          4.3L 6 cyl.   361

1987—98     T—10/T—15 Vehicles               4.3L 6 cyl.   362

1975—91     Trucks                           262—400       364Y

1983—89     Trucks                           2.8L 6 cyl.   365

1975—91     Trucks                           262—400       367Y

1975—81     Camaro/Pass Cars                 262—400       373Y

1982—92     Camaro/Pass Cars                 262—400       374Y

1980—87     Camaro/Pass Cars                 262—400       375Y

1980—95     Passenger Cars                   262—400       378Y

1993—95     Camaro/Pass Cars                 262—400       379Y

1982—1990   Camaro/Pass Cars                 262—400       380Y¥

1988—92     Camaro/Pass Cars                 262—400       381Y

1988—95     Trucks/Suburban/Blazer/Yukon     262—400       383Y

1988—95     Trucks/Suburban/Blazer/Yfikon     262—400       384Y

1988—95     Trucks/Suburban/Blazer/Yukon     262—400       385Y

1988—95     Trucks/Suburban/Blazer/Yukon     262—400       386Y

1988—95     Trucks/Suburban/Blazer           366—454       388Y

1988—94     454 "SS" Trucks                  366—454       392Y

1996—98     Motorhomes                       366—454       395Y

1996—98     Trucks                           366—454       396Y


                             Exhibit A cont.

                     General Motors Vehicles (Cont.)


1996—98   Trucks                         366—454               397Y

1987—91   Trucks                         366—454               398Y

1987—91   Trucks                         366—454               399Y




                              Geo Vehicles


Years     Applications                    Engines               Part#

1983—95   GEO Tracker                     1.3 to 1.6L 4 cyl.    700Y




                             Isuzu Vehicles

Years     Applications                    Engines               Part#

1984—87   Trooper                         2.3L 4 cyl.           8s0O0Y


                           Mitsubishi Vehicles


Years     Applications                    Engines              Part#

1982—89   Pick—ups                        2.0L 4 cyl.          131Y

1979—89   Pick—ups/Montero                2.6L 4 cyl.          133Y


                                  Exhibit A cont.

                                  Nissan Vehicles



Years     _   Applications                     Engines             Part#

1978—80       Pick—ups                         2.0L 4 cyl.         405Y

1981—88       Pick—ups                         NAP—Z 4 cyl.        450Y

1986—88       Pick—ups                         NAP—Z 4 cyl.        456Y

1986—95       Pick—ups/Pathfinders             3.0L 6 cyl.         462

1986—95       Pick—ups/Pathfinders             3.0L 6 cyl.         464

1989—95       Pick—ups/Pathfinders             NAP—Z 4 cyl.        490¥


                                  Suzuki Vehicles



Years         Applications                    Engines              Part#

1983—95       Samurai/Sidekick                1.3 to 1.6L 4 cyl.   700¥


                                  Toyota Vehicles



Years         Applications                     Engines             Part#


1976—85       Celica                           20R/22R             502Y

1982—85        Supra                           20R/22R             5S30Y¥

1981—87       Pick—ups/4—Runner                20R/22R             542Y

1984—88       Pick—ups/4—Runner                20R/22R             5S5OY¥

1988—95       Pick—ups/4—Runner                20R/22R             555¥



Document Created: 2008-08-25 13:43:44
Document Modified: 2008-08-25 13:43:44

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