Thread: HFC or X-pipe
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      04-15-2010, 12:24 PM   #9
LV-E92M3
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Quote:
Originally Posted by GBX View Post
I just spoke with Fabspeed and they told me that the biggest restriction is the facoty x-pipe and i'll see the most gains there. Can anyone confirm one way or the other??



Sounds sick! 20whp on stock ECU or with a flash?

And any idea if i'll pass NYS emissions w/ their HFC's?
with stock ecu
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