Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 24, 2005.
As of Sunday, July 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
28000C/28000AC1999-2001 Chevrolet Silverado and GMC Sierra 1500 Series extended cab short bed with the 4.8L (PN 28000C) & 5.3L (PN 28000AC) V8 engines with AIR injection and EGR. Includes high flow air intake (PN 21051), programmerThe SLP PerformancePac includes replacement rocker arms with a 1.85 rocker ratio, high flow air intake, 16 gage shorty style headers, exhaust system downstream of the catalytic converter, and a hand held programmer with no user adjustments to reprogram the vehicleÔÇÖs ECU.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-187-15
  • Executive Order 187-15 / D187-15
  • ARB # D-187-15
  • Executive Order No: D-187-15
  • C.A.R.B. No. D-187-15
  • Resolution D-187-15
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-187-15 PDF

D-187-15 Document:

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