BMW 3-Series (E90 E92) Forum - View Single Post - Finally! Riss Racing Downpipes for 335.. Amazing Power Gains and Info Inside!

phazedkid · 06-30-2007, 12:01 AM

was it a full catback??

i thought he just deleted 2nd cats. so he had stock mufflers/piping, no?

any case, yea, the only variable was the DP as far as the car is concerned. seems like temp was actually hotter for runs with the DP. awesome gains.

06-30-2007, 12:01 AM	#41
phazedkid e92 4 Rep 391 Posts Drives: e92 Join Date: May 2007 Location: Bay Area iTrader: (14)	was it a full catback?? i thought he just deleted 2nd cats. so he had stock mufflers/piping, no? any case, yea, the only variable was the DP as far as the car is concerned. seems like temp was actually hotter for runs with the DP. awesome gains.
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