Thread: ('08-'10) 08 2.5i
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Old 10-09-2012, 07:15 PM   #6870
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Join Date: Nov 2011
Chapter/Region: BAIC
Location: California
2013 WRX Limited


Originally Posted by KevinKe View Post
Since the N1 is 3", don't you lose some power? Or is it very negligible?
Does putting a new headunit give you more horsepower? What about stickers?

...That is your answer.

Originally Posted by Digital Dillon View Post
You don't loose it, you just make the same power if not more, at a higher RPM.
People claim you 'loose power' because the shift in the power band is not ideal for daily driving. I never put a 3" on my car but drove a 08 OBS with 3" catless straight piped and it felt the same as my car.
This. You will feel your low end go away, due to the huge loss of backpressure on a N/A car, but your top end will gain as there will be less restriction on the flow of exhaust gasses leaving the exhaust. All that will change is how the power reacts per RPM.
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