Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 4, 1999.
As of Thursday, July 25th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1990-99 Mazda Miatas equipped with a 4 cyl engine. 1990-93 crankshaft dia. 5.12", supercharger dia. 2.88", 1994-99 crankshaft dia. 5.125", supercharger dia. 2.64", 6 psi. max boost.Moss Motors' Mazda Supercharger Kit includes an Eaton supercharger designed to give a maximum boost of 6 psi., a new fuel pressure regulator and an aftermarket open element air cleaner to replace the original equipment air cleaner. Modifications to the emissions control system include a relocation of the throttle body, and a 4 degree retard in ignition timing

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-453-1
  • Executive Order 453-1 / D453-1
  • ARB # D-453-1
  • Executive Order No: D-453-1
  • C.A.R.B. No. D-453-1
  • Resolution D-453-1
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-453-1 PDF

D-453-1 Document:

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