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      11-13-2012, 05:00 PM   #6
t3t5
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Drives: '08 335i
Join Date: May 2012
Location: San Francisco

Posts: 1,090
iTrader: (22)

So it was confirmed I have the race version. Well it's not what I expected as it's a little louder than stock. Guess I'll give it a little break in period and try something with the 2nd cats.

Do you guys recommend just removing the 2nd cats or replacing it with hi flow cats or will that not even make the sound more louder? I want it to be a little louder but to retain the same solid low rumble it produces at low rpm and screams at high rpm.
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