how much money are you looking to spend and how much of a performance increase do you want?
Excluding Ms, BMWs are not known for their speed, but rather their agility and quality.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>