BMW M3 Forum (E90 E92) - View Single Post - Did we all get it wrong? Primary vs secondary cats

Longwong · 06-20-2013, 10:50 AM

I have not seen any dynos with secondary cat deletes however so really cannot compare although I know that is the accepted thought. Does anyone have a before and after secondary cat delete?

06-20-2013, 10:50 AM	#15
Longwong Banned 38 Rep 370 Posts Drives: e92 m3 catless Join Date: Jun 2013 Location: USA iTrader: (0)	I have not seen any dynos with secondary cat deletes however so really cannot compare although I know that is the accepted thought. Does anyone have a before and after secondary cat delete?
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