Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on March 15, 2001.
As of Friday, December 14th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
106Y1982-1987 CHRYSLER VANS / MOTORHOMES, 273-360Note: long tube style header that may require a Y pipe . For OBD II equipped vehicles, the oxygen sensor is located either in the header collector or the top of the Y pipe.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-200-21
  • Executive Order 200-21 / D200-21
  • ARB # D-200-21
  • Executive Order No: D-200-21
  • C.A.R.B. No. D-200-21
  • Resolution D-200-21
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-200-21 PDF

D-200-21 Document:



                                      State of California
                                  AIR RESOURCES BOARD

                                EXECUTIVE ORDER D—200—21
                         Relating to Exemptions Under Section 27156
                                      of the Vehicle Code

                                       DOUG THORLEY
                                       Exhaust 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 39518 of the
Health and Safety Code and Executive Order G—45—9;

IT IS ORDERED AND RESOLVED: That the installation of the Exhaust Headers
manufactured by Doug Thorley of 1561 Commerce Street, Corona, California 91720, 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 Exhibit A of this Executive Order.

The Doug Thorley‘s Exhaust 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 conflgura’uon

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 Doug 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 warrantyeither expressed or implied by the vehicle manufacturer.


  DBOUG THORLEY                                             EXECUTIVE ORDER D—200—21
  Exhaust Headers                                           (Page 2 of 2)



  This Executive Order is granted based on submitted emissions test data conducted at
  California Analytical Instruments on a 1999 General Motors 5.3L truck and a 1999 Dodge
  5.9L Durango, both certified to the low emission vehicle (LEV) emission standards. Test
  results showed that tailpipe emissions with the Doug Thorley Headers installed—on the
  trucks meet the applicable emission standards during a Cold Start CVS—75 Federal Test
  Procedure.

                    1999 General Motors 5.3L truck

                    NMOG CO          NOX      HCHO
  Standards         0.160 4.4        0.4       0.018
  Device w/idfs     0.118 2.3        0.3       0.001

                    1999 Dodge 5.9L Durango

                    NMOG CO          NOX      HCHO
  Standards         0.160 4.4        0.4       0.018
  Device widfs      0.159 2.8         0.2      0.002

  This Executive Order is also based on the On Board Diagnostic II (OBD II) testing
  conducteéd on the same test vehicles. Test data showed that the headers when installed on
  the vehicles did not affect the vehicles‘ ability to perform their OBD I! monitoring.

  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 DOOUG THORLEY‘S
  EXHAUST 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.

  Executive Order D—200—20, dated July 1999, is superseded and of no further force and
  effect.
                                                7L

  Executed at El Monte, California, this    éfi’ day of Mar




                                                . B. Summerfield, Chief
                                               Mobile Source Operations Division


                                           EXHIBIT A


                             CHRYSLER CORPORATION VEHIcLEs


Years         Applications                             Engines            Part #


1982 — 87     Vans / Motorhomes                        273 — 360          1067
1982 — 87     Vans / Motorhomes                        2173 — 360         107Y
1982 — 93     Trucks                                   273 — 360          1147
1982 — 93     Trucks                                   273 — 360          1157
1982 — 95     Class "A" Motorhomes                     273 — 360          147Y
1979 — so     D50 / Arrow Pickups                      2.0L 4 cyl         131Y
1979 — 82     D50 / Arrow Pickups                      2.0 & 2.5L 4 cy!   1337
1996 — 99    A Dodge Ram P/U Z2WD                      488 V—10 FED       1809

1994 — 89     Dodge Ram P/U 4WD                        488 V—10 CAL       1819
1996 — 35     Dodge Ram PIU 2WD                        273 — 360          182y

199e — s      Dodge Ram PU                             273 — 360          1837

1994 — 95     Dodge Ram P/U 4WD                        273 — 360          1647
1996 — 939    Dodge Ram PU                             273 — 360          1657

1895          Dodge Class "A" Motorhomes               488 V—~10

1989 — 91     Dakota P/U                               273 — 360

1992 — 94     Dakota P/U                               273 — 360

1992 — 94     Dakota P/U                               273 — 360

1994          Dakota PU                                273 — 360

1g95          Dakota PU                                273 — 360

18g95         Dakota P/U                               273 — 360.

1998 — 99     Durango 2WD                              318 — 360

 a9s — go     Durango 4WND                             318 — 360

1996 — 989    Pick—up ZWD                              318 — 360


                      CHRYSLER CORPORATION VEHICLES (CON‘T)

\Years |       Applications                             Engines              Part #


‘1996 — 99     Pick—up 4WD                               318 — 360           197Y¢

 1981 — 86     Jeep CJ                                   4.0L / 4.2L 6 cyl
 1981 — 86     Jeep CJ                                   304 — 401           sosy
 1981 — 86     Jeep CJ                                   304 — 401           sosYy

 1981 — 93     Jeep J Series                            304 — 401            615Y
 1981 — 93     Jeep J Series                             304 — 401           8187
 1981 — 93     Jesep J Series                            304 — 401           817Y
 1993 — 95     Jesp Grand Cherokee {ZJ))                 273 — 360           s30Y
 1987 — 92     Jesp Grand Cherokee (ZJ)                  4.2L 6 cyl          s32Y
 1987 — so    _ Jeep Cherokes (XJ)                       4.0L § cyl          s33Y
 1991 — 99     Jesep Wrangler (YJ)                       4.0L 6 cyi          634¢7
 1987 — 95     Jeep Wrangler {YJ)                        4.0L 8 cyl          §36Y

 1096—98       Jeep Grand Cherokes {ZJ)                  318—380
                                     FORD MOTOR CO. YEHICLES

 Years         Assplications                             Engines

 1987 — 9g4    Motorhomes

 1982 — 87     Trucks 7/ Vans / Class "C" Mcotorhcmes                        2117

 1987 — 91     Vans / Motorhomes                         379 — 460           212Y

 1985 — 39     Gillig Moforhomes                         379 — 460           213

 1986 — s      Trucks / Vans 1 Motorhomes                379 — 460           214Y

 1981 — 32     Trucks                                    351M — 400M         215

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

 }sse‘-ss      Trucks F250 / F350                        351W                244Y

 1979 — 83     Courier Pickups                           1.8L 4 cyl          245Y¢


                                  EXHIBIT _A

                      GENERAL MOTORS VEHICLES

Year(s)         Application                    Engine (s)      Part #


1981      88      Trucks                       262 — 400          300x
1996      98      Trucks                       262 — 400          301Y%


1996      98      Trucks                       262 — 400          302Y
1987      9Y1     Trucks   / Motorhomes        366 — 454          303¢
1987      91      Trucks   4WD                 366 — 454          304Y
1987      95      Motorhomes w/Allison         366 — 454          305¢
1987      95      Motorhomes                   366 — 454          306¢
1996      98      Trucks                       262 — 400          307¢
1996      98      Trucks w/      6"+ lift      262 — 400          309Y
1996      98      Trucks w/ 6"+ lift           366 — 454          310x
1981      87      Vans / Motorhomes            ‘262 — 400         315¢
1981      93      Vans / Motorhomes            262 — 400          316¥
1928      95      Cars / Trucks                262 — 400          317¢
1980      85      Chevy LUV Pickups            1.8L 4cyl          335Y%
1982      87      Trucks   2WD                 2.8L     V—6       345
1985      95      Astro / Safari Vans          4. 3L     V—6      346
1988      95      Trucks 2WD / Vans            4 .3L    V—6       347
1988      95      Trucks 4WD                   4.3L     V—6       348
1987      80      Reveon Motorhomes            366 — 454          354¥
1987      95      s—10 /   s—15 2wD             4.3L    V—6       361
1987      95      T—10 / T—15       4WD         4.3L     V—6      362
1981      91      Trucks   4WD                  262    — 400      364¢
1983      89      Trucks 4WD                    2.8L     V—6      365
1981      91      Trucks   2WD                  262    — 400      367Y


                                 Exhibit A Cont.:



 Year(s)          Application                       Engine (s)          Part#


 1980      87     Camaro,    Chevelle,              262   400           375¥
                  El Camino,     Monte Carlo,
                  Firebird, Grand Prix,
                  Regal

 1380      82     Corvette                          262   400           375Y

 1980      81     Camaro                            262   400           376Y

 1982      93     Camaro                            262   400           37TYI

 1980      88       Chevelle, Monte Carlo,          262   400           378Y
                  ‘FELl Camino, Malibu,
                    Buick, Pontiac, Olds

 1988      98     Trucks                            262   400           383Y
 1988      95     Trucks                            262   400           384x
; 1992     95      Ssuburban / Blazer               262   400           384x
 1988      95     Trucks                            262   400           385¥
 1988      95     Trucks                            262   400           386Y
 1988      95      Trucks                           366   454           388¥
 1992      95      Suburban / Blazer                366   454           388x
1993       95     Trucks                            366   454           389Y
 1988      94      454 SS Trucks                    366   454           392Y
 1996      98      Trucks                           366   454           396Y
 1996      98      Trucks                           366   454           397¥
 1987      91      Trucks 4WD                       366   454           398¢
 1987      91      Trucks Z2WD                      366   454           399¢%
 1988      95      Trucks                           283   400    383Y¥, 385Y¥, 386¥
_1996      2000    Trucks                           366   454       396¢¥, 397Y
19986      99      Trucks                           262   400           302Y%


                                               GEO YVEHICLES
        Years >      Application                                     Engin               Part #




                                                                          D
O       1983 — 95    GEO Tracker                                     1.3L/1.5L 4 oyi )   700¥     ©
    \




                                               SUZU VEHICLES
        Years        Application                                     Engine              Part #
        1984 — 87    Trooper                                         2.3L 4 cyl          800Y




                                             MITSUBISHI VEHICLES


        Years        Applications                                ‘   Engines


        1982 — 8go   Mitsubishi Pickups                              2.0L 4 cyl
        1979 — 89    Mitsubishi Pickups / Montero                    2.6L 4 cyl




                                              NISSAN_VEHICLES

                     Applications                                    Engines

        4973 — 80    Pickups                                         2.0L 4 cyl

        1981 — 88    Pickups                                         NAP—Z 4 cy!

        1986 — 88    Pickups                                         NAP—Z 4 cyi

        1986 — 95    Pickups / Pathfinders                           3.0L 6 cyi          462

        1986 — o5    Pickups / Pathfinders                           3.0L 6 cyl          464

        1989 — 85    Pickups / Pathfinders                           2.AL 4 cyl          4S0Y




                                              SVUZUKI VEHICLES
        Years        Aosplications                                   Engine

        1983 — 96    Samurai, Sidekick                               1.3L [ 1.5L 4 cy!


                                 TOYOTA VEHICLES

Years        Applications                          Engines      Part #

1982 — 85    Celica                                20R / 22R    502Y

1982 — 85    Supra                                 2.8L 6 cyl   5230¥

1981 — 87    Pickups, 4 Runner                     20R / 22R    5A42Y

1984 — 88    Pickups, 4 Runner                     20R / 22R    550Y¢

1988 — 95    Pickups                               20R / 22R    555Y

19786 — 81   Celica                                20R / 22R    502Y



Document Created: 2005-09-01 12:43:36
Document Modified: 2005-09-01 12:43:36

Previous E.O. D-200-20 | Previous E.O. D-199 | Next E.O. D-200-22 | Next E.O. D-201