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Old 08-08-2012, 09:17 PM   #10
filimafiarep
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Join Date: Aug 2011
Location: North Carolina
Posts: 12
My Ride: 2005 E46 M3
Quote:
Originally Posted by Steven747 View Post
very expensive to get more than 400whp on a s54.
Yeah, if I was going to run boost. We had looked into the HPF 2.5 simply for the rebuilt internals, but as I said before, all motor is the direction we want to stay. Without boost, >400rwhp is not possible on the s54.
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