[swamp2]

Originally Posted by m3racer

well here it 540 hp RS4, it appears it can be done, but hardly a software upgrade....

http://www.europeancarweb.com/featur..._mtm_audi_rs4/

Nice kit. I'd love to drive that beast. However, the M3 will probably have a 12:1 compression ratio so a similar system will likely bolt on nicely to an M3. 550 hp That would substantially best an F430 in power to weight and be darn close to the Z06!