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      02-08-2013, 08:32 PM   #29
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Drives: 2011 SG/FR E90 M3 DCT
Join Date: Dec 2010
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Originally Posted by Andrew@ActiveAutowerke View Post
We saw gains of up to 8whp on vehicles equipped with the older style paper filters.
That's my point! Earlier E9x M3's had a more restrictive charcoal lined air filter. More recent models have the same euro edition air filters, which are less restrictive. Lets be honest here: There are NO MAJOR GAINS in horsepower by changing the air filter on latter models. I like how your filter is built (excellent build quality) and the intake sound that comes with it, though. I will be buying it again.
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