Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 19, 1998.
As of Friday, April 19th, 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:

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