Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 20, 1999.
As of Monday, May 27th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
178-5531998 Ford 4.6L SOHV Mustang GTThe Saleen Supercharger includes the following main components: Water pump, intercooler, Eaton M-90 supercharger, 24 lb/hr fuel injectiors, throttle cable, modified engine control unit, assorted brackets, and hardware. The diameter of the drive pulley is 167mm (6.54 inches), and the supercharger pulley diameter is 74 mm (2.9 inches). Maximum boost is 8 psi at 6,000 rpm, boost pressure is 5-6 psi between 3,000 and 5,000 rpms.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-473
  • Executive Order 473 / D473
  • ARB # D-473
  • Executive Order No: D-473
  • C.A.R.B. No. D-473
  • Resolution D-473
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-473 PDF

D-473 Document:

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