Quote:
Originally Posted by turbolag
...then you'll be shafted on warrantee issues.
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Very true. But if you're looking to squeeze more power out of the car that's the route you're going to have to take. No factory pkg is going to have anything that drastically compromises emissions and thus the gains will be very very minimal at a likely ridiculous cost.
At 400+ HP the M4 will be plenty fast for me, especially coming from a E46, and maybe more if they deliver on the weight saving tech.