Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 2, 1999.
As of Thursday, January 2nd, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
LCH50571987 to 1995 General Motor trucks equipped with either a 5.0 or 5.7L engineThe Exhaust Headers are a short tube style header manufactured out of 16 gage mild steel tubing. The location of the oxygen sensor is located in the collector of the header. Connecting pipes manufactured out of 16 gage mild steel are included

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-479
  • Executive Order 479 / D479
  • ARB # D-479
  • Executive Order No: D-479
  • C.A.R.B. No. D-479
  • Resolution D-479
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-479 PDF

D-479 Document:

CARB_D-479

(Page 1 of 2) State of California & AIR RESOURCES BOARD EXECUTIVE ORDER D—479 Relating to Exemptions Under Section 27156 of the Vehicle Code LA POLE CUSTOM HEADERS EXHAUST HEADERS, P/N LCHSO57 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—45—9; IT IS ORDERED AND RESOLVED: That the installation of the Exhaust Headers, manufactured and marketed by La Pole Custom Headers, 8 Calle Coturno, Rancho Santa Margarita, California 92688—2308 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 1987 to 1995 General Motor trucks equipped with either a 5.0 or 5.7L engine. The Exhaust Headers are a short tube style header manufactured out of 16 gage mild steel tubing. The location of the oxygen sensor is located in the collector of the header. Connecting pipes manufactured out of 16 gage mild steel are included. 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 of the vehicle manufacturer. This Executive Order shall not apply to any La Pole Exhaust Header advertised, offered for sale, or sold with or installed on, a motor vehicle prior to or concurrent with transfer to an ultimate purchaser. 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 implied by the vehicle manufacturer. This Executive Order is granted based on the following submitted emissions test data on a 1994 General Motors 5.7L C1500 truck: NMHC CO NOx Baseline 0.29 4.3 1.3 La Pole Headers 0.28 4.0 1.3 Test results showed that tailpipe emissions with the Exhaust Headers installed on the vehicle did not cause exhaust emissions to exceed the baseline emissions by more than the allowed limits of 10 percent or 0.1 grams per mile on hydrocarbon (HC) and oxides of nitrogen (NOx), and 15 percent or 1.0 grams per mile carbon monoxide (CO) as specified in the "Procedures for Exemption of Add—On and Modified Parts".

~ LA POLE CUSTOM HEADERS Executive Order D—479 Exhaust Headers (Page 2 of 2) 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 LA POLE CUSTOM HEADERS‘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 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 after hearing that grounds for revocation exist. _ mm Executed at El Monte, California, this d da R. mmerfield, Chief Mobile Source Operations Division


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

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