Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 31, 2007.
As of Saturday, October 19th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
17410-811981 to 1987 4WD Pickups and 4 Runner with 2.4L 22R or 22RE engine* California only pickups uses a different style air injection manifold ** Excludes the following engine test groups: 2003 model year 3TYXT04.7HBW, 3TYXT04.7HBY, 2004 model year 4TYXT04.7W1Y, and 4TYXT04.7W1W Letter C at end of part number denotes ceramic coated The Exhaust Header is a short tube design manufactured out of 14 gage mild steel with either a chrome or ceramic coating. The oxygen sensors remain in the stock location at a collector which samples all exhaust banks.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-165-11
  • Executive Order 165-11 / D165-11
  • ARB # D-165-11
  • Executive Order No: D-165-11
  • C.A.R.B. No. D-165-11
  • Resolution D-165-11
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-165-11 PDF

D-165-11 Document:



                                       State of California
                                   AIR RESOURCES BOARD

                                 EXECUTIVE ORDER D—165—11

                          Relating to Exemptions Under Section 27156
                                     of the California Vehicle Code

                                 Downey Off Road Manufacturing
                                       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 Downey Off Road Manufacturing, 9734 Alburtis Avenue,
Santa Fe Springs, California 90670, has been found not to reduce the effectiveness of
the applicable vehicle pollution control systems and, therefore, is exempt from the
prohibitions of Section 27156 of the Vehicle Code for the following Toyota vehicle
applications:

Part No.     Application
17410—81     1981 to 1987 4WD Pickups and 4 Runner with 2.4L 22R or 22RE engine
17410—818* 1981 to 1984 4WD Pickups with 2.4L 22R engine
17412—81   1981 to 1987 2WD Pickups with 2.4L 22R or 22RE engine
17412—818* 1981 to 1984 2WD Pickups with 2.4L 22R or 22RE engine
17410—88     1988 to 1995 4WD Pickups and 4 Runner with 2.4L 22R or 22RE engine
17412—88     1988 to 1995 2WD Pickups and 4 Runner with 2.4L 22R or 22RE engine
17410—30      1988 to 1995 4WD Pickups and 4 Runner with 3.0L 3VZ engine
17410—95      1995   to   1998   4WD Pickups with 2.7L 3RZ engine
17412—95      1995   to   1998   2WD Pickups with 2.4L 2RZ engine
17412         1999   to   2004   All Pickups with 2.4L 2RZ or 2.7L 3RZ engine
17412         1995   to   2004   All 4 Runner with 2.7L 3RZ engine
17410—34      1995   to   2004   All Pickups with 3.4L 5VZ engine
17410—34     1996 to 2004 All 4 Runner with 3.4L 5VZ engine
17410—00**   1999 to 2004 Tundras with 4.7L 2UZ engine
17410—00**   2001 to 2004 Sequoias with 4.7L 2UZ engine

* California only pickups uses a different style air injection manifold
** Excludes the following engine test groups: 2003 model year 3TYXTO04.7HBW,
   3TYXTO4.7HBY, 2004 model year 4TYXTO4.7W1Y, and 4TYXTO4.7WM1W

Letter C at end of part number denotes ceramic coated


                                            Lgl 0


The Exhaust Header is a short tube design manufactured out of 14 gage mild steel with
either a chrome or ceramic coating. The oxygen sensors remain in the stock location at
a collector which samples all exhaust banks.

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

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.

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.

This Executive Order is granted based on prior evaluation which determined that the
Exhaust Headers do not cause an adverse effect on emissions of selected Toyota
trucks (Executive Order D—165—9) when tested using the CVS—75 Federal Test
Procedure. Furthermore, new emission test data was generated on a 2003 model year
Toyota Tacoma, certified to the Low Emission Vehicle I Low Emission Vehicle (LEV I
LEV) emission standards using the Supplemental Federal Test Procedure (SFTP USO6)
test cycle. Test results on the Tacoma showed that emission levels, with the Exhaust
Headers installed, met the applicable emission standards. Examination of the OBD II
system showed the Exhaust Header did not affect OBD II system operation. Results
from emission testing conducted at the Automobile Club of Southern California‘s
Emissions Laboratory, Diamond Bar, California are listed below.

                                      USO6
                               NMHC+NOx               CO
Standards                          0.25               10.5
Device                             0.13               1.7

The Air Resources Board reserves the right in the future to review this Executive Order
and the exemption provided herein to assure that the exempted add—on or modified part
continues to meet the standards and procedures of Title 13, California Code of
Regulations, Section 2222, et seq.

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 THE EXHAUST
HEADERS.



       DOWNEY OFF ROAD MANUFACTURING — EXHAUST HEADER — D—165—11


                                             —3—


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     5/          day of August, 2007




                                 Annette Hebert, Chief
                                 Mobile Source Operations Division




       DOWNEY OFF ROAD MANUFACTURING — EXHAUST HEADER — D—165—11



Document Created: 2007-09-07 14:54:08
Document Modified: 2007-09-07 14:54:08

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