Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 9, 1992.
As of Monday, April 15th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
WI-TEC 3133-89-51989 GM 5.0L/ 5.7L TrucksECU replaced with a 1992 GM ECU part # 1616299. Heated air intake system removed. Kit includes supercharger, air cleaner, boost control solenoid, fuel pump, and GM ECU.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-231-2
  • Executive Order 231-2 / D231-2
  • ARB # D-231-2
  • Executive Order No: D-231-2
  • C.A.R.B. No. D-231-2
  • Resolution D-231-2
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-231-2 PDF

D-231-2 Document:

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