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      04-20-2013, 10:21 AM   #63
Skiptomylou37
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Drives: 2008 e92 335xi
Join Date: May 2011
Location: Pittsburgh, PA

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Quote:
Originally Posted by bobs619 View Post
If r looking to diversify c63. My buddy (is-f owner) says u cannot ECU tune an IS-F, that's why guys r ditching them.
Yep but I have seen dyno graphs where an air intake and exhaust alone on an ISF will get you anywhere from 30-40whp. I guess the ECU is pretty good at adapting to the mods.