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      08-10-2009, 11:49 AM   #7
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Drives: Jet Black E92 M3
Join Date: Feb 2009
Location: Canada

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Originally Posted by Imran@Evolve View Post
You are absolutely correct. We tested the intake system with a full Akrapovic system on M3poster Donbona's M3 and it made an additional 5 BHP. I will post up to dyno graphs shortly.
sorry, my original questions was wrong, i meant if i have a MS air filter or any aftermarket one, wont the gain decrease?