Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on October 22, 1997.
As of Friday, November 29th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
100, 100S1988-1995 GM Chevy trucks, suburbans, vans w/o air injection 5.0L to 5.7L

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-411-2
  • Executive Order 411-2 / D411-2
  • ARB # D-411-2
  • Executive Order No: D-411-2
  • C.A.R.B. No. D-411-2
  • Resolution D-411-2
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-411-2 PDF

D-411-2 Document:

CARB_D-411-2

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—411—2 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 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 the installation of the Gibson Performance Exhaust Headers —————manufacturedbyGibsonPerformance3780ProspectAvenue,orbaLinda,California92686,hasbeen————————— 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 General Motors trucks equipped with either a 5.0, 5.7, or 7.4 liter engine as listed in Exhibit A of this Executive Order. The Gibson Performance Headers are a shorty style header that is manufacturered out of either 16 gage stainless steel or 14 gage mild steel. Connecting pipes are used on the big block applications and use the same type of material as the accompanying headers 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 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. Executed at El Monte, California, this 27 day of October 1997. R. B. Summerfield, Chief Mobile Source Operations Division

Exhibit A Mild Steel_Applications Application Engine Part ‘8B8 — ‘95 Chevy Trucks, Suburbans, Vans w/o air injection 305 — 350 100 ‘B8 — ‘95 Chevy Trucks, Suburbans, Vans w air injection 305 — 350 101 ffffffffff©96‘97——ChevyTrucks,Suburbans,———————————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 —‘B9 Chevy Motorhomes w/o air injection . 454 107 ( ‘75 —‘B89 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 Stainless Steel Applications Application | Engine Part ‘88 —‘95 _ > Chevy Trucks, Suburbans, Vans w/o air injection 305 — 350 100 S ‘88 — ‘95 Chevy Trucks, Suburbans, Vans w air injection 305 — 350 101 S ‘96 — ‘97 Chevy Trucks, Suburbans, Vans 305 — 350 102 S ‘73 —‘87 Chevy Trucks, Suburbans, Vans w/ carburetor 454 103 S ‘88 — ‘95 Chevy Trucks, Suburbans, Vans wio air injection 454 104 S

Exhibit A continued Stainless Stee! Applications continued ‘88 — ‘95 Chevy Trucks, Suburbaps, Vané w! air injection 454 105 S ‘96 — ‘97 Chevy Trucks, Suburbans, Vans 454 106 S ———T5—©89———ChevyMotorhomes—wioinjection—————————,454;,,_,,,,7,,,,,,,,,,,,,491&,,,,,,,,,,,,,,,,,,,,,,,,,,, ‘75 — ‘89 Chevy Motorhomes w/air injection 454 108 S — ‘B6 — ‘89 Chevy Motorhomes w/ dual air pumps 454 109 S ‘90 — ‘95 Chevy Motorhomes w/ fuel injection 454 110 S ‘96 — ‘97 Chevy Motorhomes w/ Vortech engine 454 111 S


Document Created: 2005-09-01 12:45:11
Document Modified: 2005-09-01 12:45:11

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