Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 23, 2004.
As of Monday, June 24th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
See E.O.1982 through 2004 trucks and motorhomes equipped with a Ford 8 or 10 cylinder engine, excluding ULEVs and close coupled catalyst vehicles, and Chrysler trucks equipped with an 8 cylinder engine, excluding close coupled catalyst vehicles.The Exhaust Headers are manufactured out of 16 gage stainless steel or 14 gage mild steel. The Exhaust Header is a long tube design which may include a Y-pipe on applications for Ford trucks and engines. All emission components are retained in their original location.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-554-2
  • Executive Order 554-2 / D554-2
  • ARB # D-554-2
  • Executive Order No: D-554-2
  • C.A.R.B. No. D-554-2
  • Resolution D-554-2
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-554-2 PDF

D-554-2 Document:

                                       State of California
                                   AIR RESOURCES BOARD

                                  EXECUTIVE ORDER D—554—2

                          Relating to Exemptions Under Section 27156
                                       of the Vehicle Code

                                       DOUG‘S HEADERS
                                      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 Section 39515 and Section 39516 of the
Health and Safety Code and Executive Order G—02—003;

IT IS ORDERED AND RESOLVED: That the installation of the Exhaust Headers, manufactured
and marketed by Doug‘s Headers, 1391 Dodson Way, Riverside, California, 92507 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 the vehicle
applications listed in Exhibit A, excluding those equipped with a close coupled catalyst.
The engine test groups of vehicles excluded from this Executive Order are also listed in
Exhibit A.

The Exhaust Headers are manufactured out of 16 gage stainless steel or 14 gage mild steel.
The Exhaust Header is a long tube degign which may include a Y—pipe on applications for Ford
trucks and engines. All emission components are retained in their original location.

This Executive Order is valid provided that the installation instructions for the Exhaust Headers
will not recommend tuning the vehicle to specifications different from those submitted by the
device manufacturer.

This Executive Order shall not apply toany Exhaust Headers advertised, offered for sale, sold
with, or installed on a new motor vehicle prior to or concurrent with transfer to an ultimate

Changes made to the design or operating conditions of the Exhaust Headers, as exempt by the
Air Resources Board, which adversely affect the performance of the vehicle‘s pollution control
system shall invalidate this Executive Order.
Marketing of the Exhaust Headers using any identification other than that shown in this
Executive Order or marketing of the Exhaust Headers for an application other than those listed
in this Executive Order shall be prohibited unless prior approval is obtained.from the Air
Resources Board.

Exemption of the Exhaust Headers shall not be construed as exemption to sell, offer for sale, or
advertise any component of the kit as an individual device.

This Executive Order does not constitute any opinion as to the effect the use of the Exhaust
Headers may have on any warranty either expressed or impliedby the vehicle.


This Executive Order is granted based on emissions test data generated on a 2004 model—year
5.7L Dodge Ram certified to the Super. Ultra Low—Emission Vehicle (SULEV) emission        -
standards, and a 2001 model—year 6.8L Ford F—350 certified to the Low—Emission Vehicle (LEV)
emission standards. Emission levels of the modified vehicles met the applicable emission
standards over the Cold—Start CVS—75 Federal Test Procedure (FTP) and the USO6 test cycle
(Dodge Ram only). Results are in grams per mile with deterioration factors applied to the
CVS—75 test results:

Dodge                         CVS—75                                     USO6

                  NMOG CO          NOx     HCHO                 NMHC+NOx         CO
Standards         0125 3.4        0.14     —0.015                 0.40           10.5
Device    .       0107 1.4         0.09    0.001                  0.15            3.6

F—350 w/50k                   CVS—75

                NMOG CO            NOx     HCHO
Standards (5OK) 0.195 5.0         0.6      0.022
Device          0.179 0.9         0.6      0.004

Standards (UL)    0.280     7.3   0.9     + 0.032
Device            0.214     14    0.8       0.004

This Executive Order is also based on an On—Board Diagnostic It (OBD I!) test conducted on the
same test vehicles Test data showed that the headers when installed on the vehicles did not
affect the vehicle‘s ability to perform its OBD II monitoring.

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 a ten—day 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 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 Z=>—day of March 2004.

                                        "Allen kyons, Chief
                                         Mobile Source Operations Division

                          DOUG‘S HEADERS—EXHAUST HEADERS—D—554—2

                                  Exhibit A                           D—554—2

                              FORD TRUCK

                       ER DUTY             Std. Coat       Ceramic   Stainless
          1997—03 6.8L V—10  no/EGR
                    2 WD & 4 WD            D6620           D6620—C D6620—8SS
          1997—03 6.8L V—10   w/EGR                    |
                    2 WD & 4 WD            D6621           D6621—C D6621—SS
          1994—97 460 CIDV—8 w/AIR
                    2 WD & 4WD             D6630           D6630—C D6630—SS

_E—150,    F2       =
          1987—97 460 CID FI V—8                           |
                     2 WD & 4 WD           D6614Y          D6614Y—C D6614Y—SS
          1980—87 302,351W V—8
                     2 WD & 4 WD           D6648Y          D6648Y—C D6648Y—SS
          1980—82 351—400M V—8
                     2 WD&4WD °_           D6615           D6615—C   D6615—SS


          1997—01 5.4L V—8 (excluding close coupled catalyst models)
                    2 WD & 4 WD            D6654           D6654—C D6654—SS

          1997—02 6.8L V—10 no/EGR
                    2 WD & 4 WD            D6620           D6620—C D6620—SS
          1997—02 6.8L V—10 w/EGR                                         |
                     2 WD & 4 WD           D6621           D6621—C D6621—SS


 CHASSIS (Class A)                         Coat Ceramic               Stainless
          1997—03 6.8L V—10 no/EGR          D6610          D6610—C D6610—SS
          1997—03 6.8L V—10 w/EGR           D6611          D6611—C D6611—SS
          1982—98 460 CID V—8 w/Cat         D6632          D6632—C D6632—SS

                                 Exhibit A                   D—554—2

     1982—98 460 CID V—8     _           D6633   D6633—C D6633—SS

     1997—03 6.8L V—10 no/EGR            D6645   D6645—C     D6645—SS
     1997—03 6.8L V—10 w/EGR             D6646   D6646G6—C   D6646—SS

CHASSIS (Class C)                                             |
     1997—03 6.8L V—10 no/EGR            D6612   D6612—C    D6612—SS
     1997—03 6.8L V—10 w/EGR             D6613   D6é613—C D6613—SS
     1996—97 460 CID V—8 no/AIR          D6637   D6637—C . D6637—SS
     1996—97 460 CID V—8 w/AIR
                        3 bolt Cat       D6636   D6636—C     D6636—SS
     1993—97 460 CID V—8 w/AIR
                  3" Rd. Cat inlet       D6635   D6é635—C    D6635—SS
     1992—93 460 CID V—8
                        4 bolt Cat       D6638   D6638—C     D663§—SS

                                       Exhibit A                  D—554—2


             RAM PICK—UP                       Coat
                                                 Std. Ceramic    Stainless
                 2004 5.7L Hemi 1500
                                2 WD           D4471   D4471—C D4471—SS
                 2004 5.7L Hemi 1500
                                4 WD           D4459    D4459—C D4459—SS
                 2004 5.7L Hemi 2500
                                2 WD           D4455    D4455—C D4455—SS
                 2004 5.7L Hemi 2500
                               4 WD            D4470   D4470—C D4470—SS
                 2004 5.7L Hemi 3500
                                2 WD           D4454   D4454—C D4454—SS
                 2004 5.7L Hemi 3500
                                4 WD           D4472    D4472—C D4472—$S
                 2003 5.7L Hemi 1500
                                2 WD           D4458   D4458—C D445$8—SS
                 2003 5.7L Hemi 1500
                                4 WD           D4456   D4456—C D4456—SS
                 2003 5.7L Hemi 2500
                                2 WD           D4452 . D4452—C D4452—SS
                 2003 5.7L Hemi 2500
                               4 WD            D4457    D4457—C D4457—SS
                 2003 5.7L Hemi 3500
                                2 WD           D4453   D4453—C D4453—SS
                 2003 5.7L Hemi 3500
                                4 WD           D4473   D4473—C D4473—SS
                *2002 318—360   1500
                                2 WD           D4461   D4461—C D4461—SS
                *2002 318—360   1500
                                4 WD           D4465   D4465—C D4465—SS
                *2002 318—360 2500
                                2 WD           D4464   D4464—C   D4464—SS
                *2002 318—360 2500
                                4 WD           D4466   D4466—C   D4466—SS
                *2002 360       3500
                                2 WD           D4474   D4474—C   D4474—SS

   S tyit«

i/ avenges

                                  Exhibit A                        D—554—2

                                         Std. Coat        eramic   Stainless
       *2002 360        3500
                       4 WD                D4475      D4475—C      D4475—SS
       *1994—00 318—360 1500 & 2500
                       2 WD                D4462      D4462—C      D4462—SS
       *1994—00 318—360 1500 & 2500
                       4 WD                D4463      D4463—C      D4463—SS

     *1997—00 318—360 2 WD                 D4496          D4496—C D4496—SS

       *1997—00 318—360 4 WD               D4497          D4497—C D4497—SS

       2004 5.7L Hemi 2 &4 WD              D4476          D4476—C D4476—SS

 The following Chrysler engine test groups with a closecoupled catalyst are
 excluded from this Executive Order.

*2000 Model—Year, YCRXA0360H31, YCRXA0360J31, 2001 Model—Year,
 1CRXA0360H38, 1CRXA0360H41, 1CRXAO0360J38, 1 CRXAO0360J41,
 1CRXA0360K38, 1CRXAO360OK41, 1CRXTOS.92D1,.1CRXTO5.95B5,
 2002 Model—Year, 2CRXAO0360J40, 2CRXAO36OH41 2CRXAO0360H40,
 and 2CRXTO5.92D0.

Document Created: 2005-09-01 12:41:26
Document Modified: 2005-09-01 12:41:26

Previous E.O. D-554-1 | Previous E.O. D-553 | Next E.O. D-554-3 | Next E.O. D-555