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      08-17-2012, 05:15 PM   #11
MonsterM
First Lieutenant
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Drives: 09 328i SP
Join Date: Sep 2011
Location: NJ

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I like the Eurobox due to the OEM factor. It doesn't change the sound very much, if at all. It improves the throttle response and the car pulls a little harder in at higher RPM's but nothing revolutionary. IMO the best way to go is charcoal delete with K & N unless you want to keep it clean or worry about the warranty, then the PI is the way to go. I really can't speak for the AM options but a closed set up will not change the sound by a lot.
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