Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on September 28, 1999.
As of Monday, October 14th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
89490 & 89490-61998 and 1999 model-year 4.6 liter V-8 Ford F150 and F250 trucks, including those trucks certified to Low-Emission Vehicle exhaust emission standards.The shorty headers are 4-into-1 design and are made of 16-gauge mild steel.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-167-19
  • Executive Order 167-19 / D167-19
  • ARB # D-167-19
  • Executive Order No: D-167-19
  • C.A.R.B. No. D-167-19
  • Resolution D-167-19
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-167-19 PDF

D-167-19 Document:



                                                                  (Page 1 of 2)


                                            State of California
                                        AIR RESOURCES BOARD

                                   EXECUTIVE ORDER D—167—19
                           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
(TEMS), 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, TEMS, part nos. 89490 and 89490—6 (with HTC metallic thermal coating),
is exempt from the prohibitions of Section 27156 of the Vehicle Code for installation on 1998 and
1999 model—year 4.6 liter V—8 Ford Motor Company F150 and F250 trucks, including those trucks
certified to the Low—Emission Vehicle exhaust emission standards.

This exemption is based on emission and on—board diagnostic (OBD II) system testing Hedman
Hedders conducted on a 1999 model—year 4.6 liter V—8 Ford F150 truck with the exhaust headers.
Hedman Hedders submitted the following Cold—Start CVS—75 Federal Test Procedure emission test
results:

                                NMOG        CO        NOx      HCHO
                            .               (grams per mile)
         With Headers           0.054* _    0.306      0.074   0.001*
         DF—Applied             0.062       0.366     0.094    0.001
         Standards              0.16        4.4       0.40      0.018>

         * Calculated using OEM NMOG/NMHC and HCHO/NMHC ratios.


The test data show that the exhaust headers did not adversely affect the exhaust emissions of the
1999 model—year Ford truck. The exhaust headers were also found to not affect the operation of
the vehicle‘s OBD II system. The same results are expected when the exhaust headers are installed
on the 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.


HEDMAN HEDDERS                                                     EXECUTIVE ORDER D—167—19
TUBULAR EXHAUST MANIFOLD SYSTEM                                    (Page 2 of 2)


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 cormmunication.

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 ANTI—
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 whick 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
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      &5"4       day.of September 1999.




                                         Mobile Source Operations Division



Document Created: 2005-09-01 12:43:40
Document Modified: 2005-09-01 12:43:40

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