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      01-07-2013, 05:31 PM   #9
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Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA

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Originally Posted by themyst View Post
I have catless dps with a stock exhaust with the secondaries cut. Sounds stock still.
I respectfully disagree. I have catless dps with the secondaries still there and there is a noticeable difference at idle as well as while driving. I would have to think deleting the secondary cat would only increase the sound a bit more. I'm not saying it's a huge difference from stock, but noticeable IMO.
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear