Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 4, 1998.
As of Monday, May 27th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1988-1998 GM trucks 5.0L, 5.7L, 7.4L, EXCLUDING 1998 model year engine families WGMXA05.7185, and WGMXA05.7186, which are certified to a low emission vehicle (LEV) emission standard.It includes a set of exhaust headers and connecting pipes manufactured out of 17 gage stainless steel. The installation of the PowerPack Exhaust System does not require any modifications to the vehicle's emission control system.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-161-49
  • Executive Order 161-49 / D161-49
  • ARB # D-161-49
  • Executive Order No: D-161-49
  • C.A.R.B. No. D-161-49
  • Resolution D-161-49
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-161-49 PDF

D-161-49 Document:

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