Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on December 7, 1999.
As of Monday, January 20th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
E5086921986-93 5.0L Mustang

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-241-4
  • Executive Order 241-4 / D241-4
  • ARB # D-241-4
  • Executive Order No: D-241-4
  • C.A.R.B. No. D-241-4
  • Resolution D-241-4
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-241-4 PDF

D-241-4 Document:

CARB_D-241-4

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—241—4 Relating to Exemptions Under Section 27156 of the Vehicle Code MAC PRODUCTS - SHORTIE AND STUBBIE 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—45—9; IT IS ORDERED AND RESOLVED: That the installation of the Shortie and Stubbie Exhaust Headers, manufactured out of 16 gage steel and marketed by MAC Products, 43214 Black Deer Loop, Unit #113, Temecula, California 92590—3473 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 the following Ford vehicle applications equipped with either the 5.0 or 5.8 liter engine: Part No. Tube Size Vehicle Application Classification E508692 1 5/8" 1986—93 Mustang Shortie E668692 1 4A" 1986—92 Lincoln Mark VII 1985—86 Mercury Capri 9028690 1 578" 1986—93 Mustang Stubbie 5028692 1 A" 1986—92 Lincoln Mark VII 1985—86 Mercury Capri 903091 1 4A" 1990—93 Thunderbird and Cougar Shortie 9358690 1 578" 1985—93 Trucks Stubbie 8358690 1 578 1985—93 Trucks, black coated header E907292 1 578" 1986—93 Mustang Shortie (using aftermarket cyl. heads) 1986—92 Lincoln Mark VII 1985—86 Mercury Capri E500940 1 5/8" 1994—95 Mustang Shortie 902940 1994—95 Mustang Stubbie This Executive Order shall not apply to any MAC Products Shortie and Stubbie Exhaust Headers advertised, offered for sale, or sold with or installed on, a motor vehicle prior to or concurrent with transfer to an ultimate purchaser. This Executive Order is valid provided that the installation instructions for the headers will not recommend tuning the vehicle to specifications different from those of the vehicle manufacturer.

MAC Products EXECUTIVE ORDER D—241—4 Shortie and Stubbie Exhaust Headers (Page 2 of 2) Changes made to the design or operating conditions of the 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 headers using any identification other than that shown in this Executive Order or marketing of the 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 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 headers may have on any warranty either expressed or implied by the vehicle manufacturer. This Executive Order is granted based on previously submitted emissions test data. Results showed that the exhaust header when installed on the vehiclie did not cause an adverse affect on tailpipe emissions. 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 MAC PRODUCTS‘ SHORTIE AND STUBBIE 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. Executive Order D—241—3, dated July 1992, is superseded and of no further force and effect. Executed at El Monte, California, this :Z day of December 1999. KB Summerfleld Ch|ef Mobile Source Operations Division


Document Created: 2005-09-01 12:43:00
Document Modified: 2005-09-01 12:43:00

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