BMW M3 Forum (E90 E92) - View Single Post - Akra slip on what xpipe = pass smog and no CEL??

phusion974 · 06-24-2011, 10:14 PM

You can go with the Challange, Gintani, Active, or Akrapovic X pipes. There are alot of options out there.
Personally I would go with either the Challenge Race or Gintani Catless.

06-24-2011, 10:14 PM	#9
phusion974 Lieutenant 19 Rep 437 Posts Drives: OE Tuned C63 Join Date: Oct 2010 Location: L.A. iTrader: (0)	You can go with the Challange, Gintani, Active, or Akrapovic X pipes. There are alot of options out there. Personally I would go with either the Challenge Race or Gintani Catless.
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