Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 12, 1998.
As of Saturday, February 22nd, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
1001988-1995 Chevrolet Trucks, Suburbans, Vans w/o air injection 305-350

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-411-3
  • Executive Order 411-3 / D411-3
  • ARB # D-411-3
  • Executive Order No: D-411-3
  • C.A.R.B. No. D-411-3
  • Resolution D-411-3
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-411-3 PDF

D-411-3 Document:

CARB_D-411-3

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—411—3 Relating to Exemptions Under Section 27156 of the Vehicle Code GIBSON PERFORMANCE Gibson Performance Exhaust Headers Pursuant to the authority vested in the Air Resources Board by Section 27156 of the Vehicle Code; and Pursuant to the author}ty 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 the installation of the Gibson Performance Exhaust Headers manufactured by Gibson Performance of 3780 "B" Prospect Avenue, Yorba Linda, California 92686, 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 those applicable Chrysler, Ford, and General Motors trucks as listed in Exhibit A of this Executive Order, excluding any Chrysler or General Motors vehicle certified to a transitional low emission vehicle (TLEV) or low emission vehicle (LEV) emission standard. The following 1998 model—year engine families certified to the TLEV or LEV emission standard are excluded from this Executive Order: GM Trucks: WGMXAO04.3188, WGMXTO4.3185, WGMXTO4.3187, WGMXAO0S.7185, and WGMXA05.7186, Chrysler Trucks: WCRXTO242220, WCRXTO242120, WCRXA0360OH31, WCRXA0O360H32, and WCRXA0O360J31. The Gibson Performance Headers are a shorty style header that is manufactured out of either 16 gage stainless steel or 14 gage mild steel. The headers bolt to the stock connecting pipes and retain the oxygen sensor in stock location. This Executive Order is valid provided that installation instructions for this kit will not recommend tuning the vehicles to specifications different from those of the vehicle manufacturer. Changes made to the design or operating conditions of the devices, as exempt by the Air Resources Board, which adversely affect the performance of a vehicle‘s pollution control system shall invalidate this Executive Order. Marketing of this device using any identification other than that shown in this Executive Order or marketing of this device 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 device may have on any warranty either expressed or implied by the vehicle‘s manufacturer. This Executive Order is granted based on the following submitted emissions test data: 1997 5.7L General Motors Full Size Truck 1998 5.4L Ford Expedition NMHC CO NOX NMOG* CO NOX HCHO* Standards 0.32 4.4 0.7 0.195 5.0 0.6 0.022 device w/ dfs 0.20 3.0 0.5 0.118 1.8 0.2 0.002 1997 5.9L Dodge Ram Truck NMHC CO NOX Standards 0.32 4.4 0.7 device w/ dfs 0.13 2.6 0.5

GIBSON PERFORMANCE EXECUTIVE ORDER D—411—3 Gibson Performance Exhaust Headers (Page 2 of 2) Test results showed that tailpipe emissions with the Performance Header System installed on the trucks met the truck‘s applicable emission standard during a Cold Start CVS—75 Federal Test Procedure. This Executive Order is also based on On Board Diagnostic II (OBD II) testing conducted on the same trucks. Test data showed that the Performance Header System when installed on the trucks did not affect the truck‘s ability to perform its OBD II monitoring. THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF GIBSON PERFORMANCE‘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 ten days 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 will 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. A <~. Executed at El Monte, California, this 1A '/day of August 1998. \‘LW &/f / B. Summerfield, Chief Mobile Source Operations Division

Exhibit A (page 1 of 3) Mild Steel Headers Applications Application Engine ‘88 — ‘95 Chevy Trucks, Suburbans, Vans w/o air injection 305 — 350 ©‘88 — ‘95 Chevy Trucks, Suburbans, Vans w/ air injection 305 — 350 +96 — ‘97 Chevy Trucks, Suburbans, Vans 305 — 350 102 ‘73 — 87 Chevy Trucks, Suburbans, Vans w/ carburetor 454 103 *88 — ‘95 Chevy Trucks, Suburbans, Vans w/o air injection 454 104 ©88 — ‘95 Chavy Trucks, Suburbans, Vans w/ air injection 454 105 +‘96 — ‘97 Chevy Trucks, Suburbans, Vans 454 106 *75 — *89 Chevy Motorhomes w/o air injection 454 107 ‘75 — ‘89 Chevy Motorhomes w/air injection 454 108 ©86 — ‘89 Chevy Motorhomes w/ dual air pumps 454 109 ‘90 — ‘95 Chevy Motorhomes w/ fuel injection 454 110 ©‘96 — ‘97 Chevy Motorhomes w/ Vortech engine 454 111 ‘98 Chevy Trucks (no Suburban) 350 113 ‘98 Chevy Trucks (no Suburban) 454 114 *88 — ‘©95 Chevy Trucks Full Size 4.3L V—6 120 ©88 — ‘95 Chevy Trucks Full Size w/ air injection 4.3L V—6 121 ©88 — ‘95 Chevy S—10 / S—15 4.3L V—6 122 ©‘96 — ‘97 «Chevy S—10 / S—15 4.3L V—6 123 ‘87 — ‘97 Ford Trucks 302 200 ©‘86 — ‘97 Ford Trucks 351 201 ©‘83 — ‘87 Ford Trucks 460 Carb 202 *88 — ‘93 Ford Trucks 460 F.L. 203 ‘93 . ‘95 Ford Trucks 460 F.L. 204 +96 — ‘98 Ford Trucks 460 F.I. 205 ‘97 — ‘98 Ford Trucks 5.4L 206 +‘97 — ‘98 Ford Trucks 4.6L 207 +95 — ‘98 Ford Class A Motorhomes 460 F.1. 208 ©86 — ‘89 Ford Class A Motorhomes 460 Carb 209 ©‘96 — ‘98 Ford Trucks 460 F.1. 210 +‘98 Ford Trucks V—10 211

Exhibit A (cont‘d) (page 2 of 3) Application Engine Part *88 — <93 Ford Class A Motorhomes 460 F.1. 212 +93 — ©94 Ford Class A Motorhomes 460 F.L. 213 +©92 — ‘95 Dodge Trucks 5.2L / 5.9L 300 +‘96 — ‘98 Dodge Trucks (no ‘98 LEV‘s) 5.2 L / 5.9L 301 ©96 — ‘98 Dodge Trucks V—10 302 +94 — ‘95 Dodge Trucks V—10 303 +96 — ‘98 Dodge Trucks (Calif.) V—10 304 +92 — ‘95 Dodge Trucks 3.9L V—6 305 +©96 — ‘98 Dodge Trucks (no ‘98 LEV‘s) 3.9L V—6 306 Stainles teel Headers Applications Applicati n Engine Part# <88 — <95 Chevy Trucks, Suburbans, Vans w/o air injection 305 — 350 1008 *88 — <95 Chevy Trucks, Suburbans, Vans w/ air injection 305 — 350 1018 ©‘96 — ‘97 Chevy Trucks, Suburbans, Vans 305 — 350 1028 ‘73 — ‘87 Chevy Trucks, Suburbans, Vans w/ carburetor 454 1038 ©88 — ‘95 Chevy Trucks, Suburbans, Vans w/o air injection 454 1048 ‘88 — ‘95 Chavy Trucks, Suburbans, Vans w/ air injection 454 1058 +96 — ‘97 Chevy Trucks, Suburbans, Vans 454 1068 ‘75 — ‘89 Chevy Motorhomes w/o air injection 454 1078 ‘75 — ‘89 Chevy Motorhomes w/air injection 454 1088 ©86 — ‘89 Chevy Motorhomes w/ dual air pumps 454 1098 ©‘90 — ‘95 Chevy Motorhomes w/ fuel injection 454 1108 ©96 — ‘97 Chevy Motorhomes w/ Vortech engine 454 1118 ‘98 Chevy Trucks (no Suburban) 350 1138 *98 Chevy Trucks (no Suburban) 454 1148 *88 — ‘95 Chevy Trucks Full Size 4.3L V—6 1208 *88 — ‘95 Chevy Trucks Full Size w/ air injection 43L V—6 1218 ©88 — ‘95 Chevy S—10 / S—15 4.3L V—6 1228 +96 — ‘97 Chevy S—10 / S—15 4.3L V—6 1238

Exhibit A (cont‘d) (page 3 of 3) Applicati Engine «87 — 97 Ford Trucks 302 2008 ‘86 — ‘97 Ford Trucks 351 2018 ‘83 — ‘87 Ford Trucks 460 Carb 2028 ‘88 — ‘93 Ford Trucks 460 F.J. 2038 <93 . <95 Ford Trucks 460 F.1. 2048 ‘96 — ‘98 Ford Trucks 460 F.L. 2058 «97 — ‘98 Ford Trucks 5.4L _ 2068 «97 — <98 Ford Trucks 4.6L 2078 ‘95 — ‘98 Ford Class A Motorhomes 460 F.L. 208S ‘86 — ‘89 Ford Class A Motorhomes 460 Carb 2098 +‘96 — ‘98 Ford Trucks 460 F.L. 2108 <‘98 Ford Trucks v—10 2118 ‘88 — <93 Ford Class A Motorhomes 460 F.L. 2128 <93 — ‘94 Ford Class A Motorhomes —460 F.1. 2138 192 . ‘95 Dodge Trucks 5.2L / 5.9L 3008 ©96 — ‘98 Dodge Trucks (no ‘98 LEV‘s) 5.2 L / 5.9L 3018 <96 — ‘98 Dodge Trucks | v—10 3028 <94 — ‘95 Dodge Trucks v—10 3038 ‘96 — ‘98 Dodge Trucks (Calif.) v—10 3048 192 . ‘95 Dodge Trucks 3.9L V—6 3058 ‘96 — ‘98 Dodge Trucks (no ‘98 LEV‘s) 3.9L V—6


Document Created: 2005-09-01 12:44:21
Document Modified: 2005-09-01 12:44:21

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