Really? I looked up a c63 baseline dyno and they only seem to be pushing out 360-380 whp stock...
and there's also this:
http://www.youtube.com/watch?feature...&v=truEo8AXz5Y
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion
Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust,
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