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      02-28-2012, 06:58 PM   #5
sarvar91
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Drives: Alpina B3 Allrad F30
Join Date: Dec 2011
Location: Switzerland

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Quote:
Originally Posted by BiG22DuBz View Post
You can install any kind of downpipes to any exhaust. All downpipes connect to factory midpipes. All cat backs fit to factory exhaust pipes. Altering your factory cat convertors for straight Downpipes will void your warranty. BUT you will gain the most power and torque

What if i install downpipes with cats instead of straight ones, would that void my warranty?
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