E46Fanatics - View Single Post - DIY: E46 Header Installation Guide
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Old 02-05-2013, 04:17 PM   #265
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Join Date: Nov 2012
Location: Riverside, CA
Posts: 85
My Ride: 2002 325i
Originally Posted by gdjohny View Post
Great write up
Can anyone tell me how much is the power gain just from the headers on 330 2001 coupe??
Thanks a lot
I felt a huge difference, maybe 15 hp... but car was way more responsive like when I was in a lower gear it took off like a beast. On freeway flooring it at 60 with stock manifold was slow but with headers it was like DAMN IM AT 80 ALREADY
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