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Old 01-25-2013, 11:29 AM
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vst335is vst335is is offline
Officially Welcomed to the 'Fest
Location: USA
Join Date: Aug 2012
Posts: 483
Mein Auto: 335is
Originally Posted by 54 View Post
i have a 09 335i and I did afe intake and rennart 2.5" exhaust, it made a bid difference. The afe intake is around 500, it does't make a 500 dollar diff by it's self. On the other hand the more air you give a turbo the happier it is.
335IS is different
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