Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on November 2, 1998.
As of Monday, June 17th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
79540 & 79540-61996 to 1998 Dodge trucks equipped with the 5.2/5.9L engineManufactured out of 16 gage mild steel tubing with a diameter of 1.5" and a 4 to 1 design

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-167-17
  • Executive Order 167-17 / D167-17
  • ARB # D-167-17
  • Executive Order No: D-167-17
  • C.A.R.B. No. D-167-17
  • Resolution D-167-17
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-167-17 PDF

D-167-17 Document:



                                                                    (Page 1 of 2)




                                               State of California
                                           AIR RESOURCES BOARD

                                       EXECUTIVE ORDER D—167—17
                                 Relating to Exemptions Under Section 27156
                                              of the Vehicle Code

                                       HEDMAN HEDDERS
                               TUBULAR EXHAUST MANIFOLD SYSTEM


Pursuant to the authority vested in the Air Resources Board (ARB) 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—45—9;

IT IS ORDERED AND RESOLVED: That installation of the Tubular Exhaust Manifold System,
manufactured by Hedman Hedders of 9599 Jefferson Boulevard, Culver City, California 90232,
has been found not to reduce the effectiveness of the applicable vehicle pollution control system,
and therefore, the exhaust headers are exempt from the prohibitions of Section 27156 of the
Vehicle Code for installation on the following Chrysler Corporation Dodge trucks:

         Part No.            Vehicle MY            Vehicle Model                     Engine


         79540                1996—1998            Dodge ‘A & 1 ton trucks           5.2/5.9 liter
         79540—6*

         *       Headers with HTC metallic thermal coating

         The above vehicle application includes trucks that have been certified to mee
             —       la‘s   low—emission   vehi      e         d             a




This exemption is based on an emission test conducted by Hedman Hedders on a 1998 model—year
5.9 liter Dodge Ram 1500 truck. Hedman Hedders submitted the following Cold—Start CVS—75
Federal Test Procedure emission results:

                                           NMOG        CO          NOx           HCHO
                                                         (grams per mile)

         With Headers                      0.104       2.562       0.235         0.001
         DF—Applied                        0.127       3.297       0.324         0.001
         50,000—Mile Standard              0.195       5.0         0.6           0.022


HEDMAN HEDDERS                                                  EXECUTIVE ORDER D—167—17
TUBULAR EXHAUST MANIFOLD SYSTEM                                 (Page 2 of 2)


The test data show that the exhaust headers did not adversely affect the exhaust emissions of the 1998
model—year.Dodge truck. The same emissions impact is expected when the exhaust headers are
installed on the other vehicles for which the exemption is requested.

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

Changes made to the design or operating conditions of the exhaust headers, as exempt by the ARB,
which adversely affect the performance of the vehicles‘ pollution control system, shall invalidate this
Executive Order.

Marketing of the exhaust headers using identification other than that shown in this Executive Order or
for an application other than that listed in this Executive Order shall be prohibited unless prior
approval is obtained from the ARB. Exemption of the exhaust headers shall not be construed as
exemption to sell, offer for sale, or advertise any component of the exhaust headers 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 implied by the vehicle manufacturer.

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.

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

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

Executed at El Monte, California, this      .       day of November 1998.




                                 ‘ B. Summerfield,
                                          ({J      Chief
                                          obile Source Operations Division



Document Created: 2005-09-01 12:42:30
Document Modified: 2005-09-01 12:42:30

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