N55 Catless Downpipe TAKE OFF CRUISING FLY BY COLD START - Vishnu 3.5 Downpipe
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05-26-2011, 04:49 PM
Drives: '11 135 Sport DCT
Join Date: Apr 2011
Location: The Valley, Los Angeles
Originally Posted by
Sound pretty good, but how efficient is the rest of the stock exhaust? How much does it hold you back in terms of power?
If you went with a full stainless steel exhaust probably another 10-20hp.
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