Approval Details

Valid E.O.


This Executive Order approved the specified parts on on June 28, 2011.
As of Monday, July 22nd, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

2007 through 2012 GT500 MustangThe 2007 to 2012 model year Ford 5.4L Shelby GT500/KR Supercharger Kit consists of the following main components: Twin screw supercharger designed to replace the stock supercharger, modified ECM calibration, Ford GT style air intake system and mass air flow sensor, 75 mm throttle body, and a conical air filter in a new air box. The stock crankshaft pulley is retained. There are no changes or modifications to any of the following: vacuum or emission related hoses, fuel injectors, or radiator thermostat. Maximum boost is 12 psi.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-271-20
  • Executive Order 271-20 / D271-20
  • ARB # D-271-20
  • Executive Order No: D-271-20
  • C.A.R.B. No. D-271-20
  • Resolution D-271-20
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-271-20 PDF

D-271-20 Document:

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