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      09-05-2011, 03:34 PM   #11
First Lieutenant

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Drives: E92 M3
Join Date: Apr 2011
Location: Toronto

Posts: 322
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Originally Posted by Mahzari View Post
I'm not that worried, I just don't think gaining 5hp from a filter is worth ruining my 3 years of warranty... I guess I'll just call my dealership and ask
i'm on the same boat as you ... looking into dinan exhaust but worried about the warranty issue ... keep us posted.