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      02-13-2012, 07:05 AM   #97
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Drives: Z4M Hardtop Roadster
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Quote:
Originally Posted by beta View Post
I'd be curious to see why your friend came to that conclusion. The WRT dyno posted earlier showed a gain of 3.6% hp, so 5% might be optimistic. But still that's 10-15hp on a stock car.

What other ways can one increase that much hp on our cars? Besides headers... Full CSL treatment only got BMW to 360, that's only 10-20hp more than headers. Unless you go FI there's not many places to gain.
Maybe they came up with that number on their website in a FI app. Maybe Light weight Flywheel? IDK
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