Originally Posted by Bullseye
Anything short of a supercharger and some heavy suspension modifications aint going to let you run with an E46 m3 or decently modded e36's.
The crossfire is outclassed by those cars severly, Better off buying a E36 m3 because when you done spending all the money to make the crossfire perform you could have bought one and saved some cash.
The Crossfire is not even in the same classification as those cars. The SCCA has put the Crossfire in the DS class which pits it against many under-powered sports sedans.
If you do mods, you'll be placed in DSP class and still should walk away with a trophy every weekend, if you know how to drive. Best bet is to change the diff. gears to 3.69:1, ECU remap, suspension upgrade, good sticky tires, cold air intake & pedal to the metal.
You're not going to get any other performance packages currently unless you have an extra 20k in your sock drawer.