Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 16, 2004.
As of Wednesday, June 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

All 2005 model-year and older vehiclesThe Tornado Fuel Saver/Cyclone Fuel Saver is a one-piece metal device installed either in the intake air ducting or inside the air cleaner. No emission control components are removed or relocated with the installation of the Tornado Fuel Saver/Cyclone Fuel Saver.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-581
  • Executive Order 581 / D581
  • ARB # D-581
  • Executive Order No: D-581
  • C.A.R.B. No. D-581
  • Resolution D-581
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-581 PDF

D-581 Document:

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