Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on October 19, 1998.
As of Thursday, November 28th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
P4529416, P4876251, P4876252, P486-91 4.0L 6 JEEP, 97 DAKOTA V-8 4WD/AUTO, 97DAKOTA V-8 2WD/MANUAL, 97 DAKOTA V-8 2WD/AUTO, 96-99 V-8 B-VAN, 97-99 JEEP WRANGLER TJ 4.0L 6CYL, 97 DAKOTA V-8 4WD/MANUAL, 94-95 V-8 RAM 2WD 5 SPEED, 94-95 V-8 RAM 4WD 5 SPEED, 96-99 V-8 RAM 4WD 5 SPEED, 98/99 GRAND CHEROKEE 5.2/5.9L V8, 98/99 DURANGO, 98/99 DAKOTA 360, 86-91 4.0L JEEP, 98/99 2WD DURANGO, 93-95 V-8 GRAND CHEROKEE, 94/95 V-10 RAM 2WD & 4WD, 96 DAKOTA 2WD/AUTO V-8, 96 DAKOTA 2WD/MANUAL V-8, 96 DAKOTA 4WD V-8, 96-99 RAM 2WD/AUTO V-8, 96-99 RAM 2WD / MANUAL V-8, 96-99 RAM 4WD/AUTO V-8, 96-99 RAM V-10 CALIFORNIA ONLY, 96-99 RAM V-10 FEDERAL, 96 DAKOTA 2WD 4 CYL, 96 DAKOTA 2WD V-6, 96-98 GRAND CHEORKEE 5.2/5.9L V-8, 96-99 JEEP CHEROKEE 6 CYL, 95-99 JEEP WRANGLER YJ 6 CYL,Mike Leach's Exhaust Headers are a long tube style header that may require the use of a connecting Y pipe for installation, both are manufactured out of 14 gage mild steel. The oxygen sensor is located either in the header's collector pipe or remains at the stock location in front of the catalyst

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-401-2
  • Executive Order 401-2 / D401-2
  • ARB # D-401-2
  • Executive Order No: D-401-2
  • C.A.R.B. No. D-401-2
  • Resolution D-401-2
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-401-2 PDF

D-401-2 Document:

CARB_D-401-2

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—401—2 Relating to Exemptions Under Section 27156 of the Vehicle Code MIKE LEACH COMPANY EXHAUST HEADER 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; ITIS ORDERED AND RESOLVED: That the installation of the Exhaust Header manufactured by the Mike Leach Company of 1443 W. Collins, P.O. Box 3725, Orange, California 92667 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 Chrysler trucks listed in Exhibit A, which is attached hereto and incorporated herein. Mike Leach‘s Exhaust Headers are a long tube style header that may require the use of a connecting Y pipe for installation, both are manufactured out of 14 gage mild steel. The oxygen sensor is located either in the header‘s collector pipe or remains at the stock location in front of the catalyst. _ Ais Executive Order is valid provided that installation instructions for the Exhaust Header will not recommend tuning the vehicle to specifications different from those of the vehicle manufacturer. Changes made to the design or operating conditions of the Exhaust Header, as exempt by the Air Resources Board, which adversely affect the performance of a vehicle‘s pollution control system shall invalidate this Executive Order. Marketimng of the Exhaust Header using any identification other than that shown in this Executive Order or marketing of the Exhaust Header 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 Header 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 1998 Ram 1500 truck certified to a low emission vehicle standard which showed that the vehicle in the modified configuration met the applicable emission standards. Testing consisted of one Cold Start CVS—75 Federal Test Procedures in the modified configuration. The following test results are in grams per mile with deterioration factors applied: NMOG CO NOX HCHO Standard 0.16 4.4 0.4 0.018 Device 0.12 2.2 0.2 0.003 This Executive Order is also based on On Board Diagnostic II (OBD II) testing conducted on the same vehicle. Test ~ ta showed that the headers when installed on the vehicle did not affect the vehicle‘s ability to perform its OBD II , «onitoring.

MIKE LEACH COMPANY EXECUTIVE ORDER D—401—2 EXHAUST HEADER (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 CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF MIKE LEACH COMPANY‘S EXHAUST HEADER. 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 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. L Executed at El Monte, California, this _/_i’ day of October 1998. B. Summerfield, Chlefgé/ obile Source Operations Division

Exhibit A PART # DESCRIPTION P4529416 86—91 4.0L 6 JEEP P4876251 97 DAKOTA V—8 4WD/AUTO P4876252 . 97DAKOTA V—8 2WD/MANUAL P4876258 97 DAKOTA V—8 2WD/AUTO P4876259 96—99 V—8 B—VAN P4876260 97—99 JEEP WRANGLER TJ 4.0L 6CYL P4876566 97 DAKOTA V—8 4WD/MANUAL P4876680 94—95 V—8 RAM 2WD 5 SPEED P4876681 94—95 V—8 RAM 4WD 5 SPEED P4876682 96—99 V—8 RAM 4WD 5 SPEED P4876773 98/99 GRAND CHEROKEE 5.2/5.9L V8 P4876815 98/99 DURANGO P4876901 98/99 DAKOTA 360 P4876918 86—91 4.0L JEEP P5007091 98/99 2WD DURANGO P5249531 93—95 V—8 GRAND CHEROKEE P5249763 94/95 V—10 RAM 2WD & 4WD P5249960 96 DAKOTA 2WD/AUTO V —8 P5249961 96 DAKOTA 2WD/MANUAL V—8 P5249962 96 DAKOTA 4WD V—8 P5249963 96—99 RAM 2WD/AUTO V—8 P5249964 96—99 RAM 2WD / MANUAL V—8 P5249965 96—99 RAM 4WD/AUTO V—8 P5249966 96—99 RAM V—10 CALIFORNIA ONLY P5249967 96—99 RAM V—10 FEDERAL P5249968 96 DAKOTA 2WD 4 CYL P5249969 96 DAKOTA 2WD V—6 P5249970 96—98 GRAND CHEORKEE 5.2/5.9L V—8 P5249971 96—99 JEEP CHEROKEE 6 CYL P5249972 95—99 JEEP WRANGLER YJ 6 CYL


Document Created: 2010-07-06 11:26:37
Document Modified: 2010-07-06 11:26:37

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