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      07-28-2012, 11:09 PM   #13
Second Lieutenant
meko's Avatar

Drives: E92 M3
Join Date: Oct 2010
Location: New Jersey

iTrader: (2)

This...I'm in the same boat. I did the 2 pipe mod and LOVE the sound. Now I'm thinking I'd go for little power, and primary cat delete is the only cat you should be deleting for power because secondary flows well already. Leaving the resonator in place to. Too much sound increase and having to get a tune for CEL is what's holding me back. Not sure if it's all worth it honestly. These cars are plenty fast, I just want the S65 to breathe her best. Anyway, you should either do the primary or don't bother IMO.