Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 18, 2011.
As of Sunday, July 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
See PDF2006 and older GM V8 and V6 vehiclesThe Exhaust Headers are manufactured out of 14 gage mild steel or stainless steel tubing, and are a shorty design except for 1995 and older vehicle applications which may include long tube headers. On applicable vehicles, the oxygen sensor is in the stock location at the collector and the stock connecting pipe is retained.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-167-33
  • Executive Order 167-33 / D167-33
  • ARB # D-167-33
  • Executive Order No: D-167-33
  • C.A.R.B. No. D-167-33
  • Resolution D-167-33
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-167-33 PDF

D-167-33 Document:

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