Originally Posted by ersin
Drive shaft? Are you serious? Is that not a major undertaking? I didn't think anyone made these anyway. But not a bad idea. Not only would you be getting lighter mass, but also lighter rotating mass -- should increase throttle response.
I am just curious, not serious!
No way am I going to replace the driveshaft of a car that is under warranty.
I thought there were some CF options available for the E46 M3 though?