Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 25, 2000.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
50HD9000 (1.6L) 50HD9094 (1.8L)1990-1997 Mazda MX5 (Miata) equipped with either the 1.6L or 1.8L enginePart number 50HD9000 is applicable to the 1.6 liter engine and part number 50HD9094 is applicable to the 1.8 liter engine. The headers are sold with connecting pipes and are manufactured out of 14-gage steel that is ceramic coated.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-344-7
  • Executive Order 344-7 / D344-7
  • ARB # D-344-7
  • Executive Order No: D-344-7
  • C.A.R.B. No. D-344-7
  • Resolution D-344-7
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-344-7 PDF

D-344-7 Document:

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