Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 20, 2006.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
29920-072007 Softail models FLSTF, FXSTDScreamin' Eagle Big Bore Stage-2 EFI Kit, includes the following main components: Screamin' Eagle high flow air filter using stock air filter cover, larger bore cylinders to change bore from 3.75 to 3.875 inches, larger bore pistons to accommodate cylinders, camshaft (profile # SE-255), piston rings, gaskets, catalyst mufflers, and a new ECM calibration. The new ECM calibration is a dealer downloaded file that requires the use of a scan tool for installation. Kit increases engine displacement from 1584 to 1690cc. The kit modifies the non-catalyst exhaust system to a dual catalyst exhaust system, using the catalyst mufflers of engine family 7HDXC1.80AEC.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-338-56
  • Executive Order 338-56 / D338-56
  • ARB # D-338-56
  • Executive Order No: D-338-56
  • C.A.R.B. No. D-338-56
  • Resolution D-338-56
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-338-56 PDF

D-338-56 Document:

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