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      01-30-2013, 09:45 PM   #39
aandrew325
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Drives: e92 335i
Join Date: Sep 2010
Location: Valley, 818

Posts: 441
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Quote:
Originally Posted by Amini77 View Post
Exhaust, intake, tune, catless headers, aren't those in a sense bolt on?
Yes but on a 328 do those really provide that much of a power gain? I've never looked into it but coming from a e46 325 i know that the exhaust/intake i did did practically nothing.
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