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Old 10-10-2010, 09:20 PM   #9
chazly413
Scooby Specialist
 
Member#: 151079
Join Date: Jun 2007
Chapter/Region: MAIC
Location: College Park, MD
Vehicle:
2005 2.5RS RBP
too many friction losses

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Quote:
Originally Posted by kansai104 View Post
so i guess is true what they say on the box....OEM filter is like car breathin through a straw.....what about wrx exhaust system.......would it help?? i know the sound is good...but other than that increase 1hp ???
It's not the filter, it's the piping between the airbox and the throttle body. I don't get why people think WRX or STI stuff will automatically mean more power. The only thing that will get you noticeable gains out of your exhaust are headers.

This is a hybrid intake:
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