i have to agree, these cares have so many sensors, computers, etc.,etc.,etc......., i would not attemp this type of conversion. i used to have a srt6 and you will not acheive the same thing by changing engine parts. save some mony and trade for a srt6 and you will be happy with the outcome. if you are too attached to your xfire them spend your money wisely to get the most hp out of the na and be happy with that. remember we have some extremely intelligent people on this forum that have been trying for 5 or 6 years now to disable our traction control with no luck as of yet ( as far as i know from reading the posts). with that said imagine the nightmare that you will have when you start trying your conversion. it would be a different story if you had the support of the entire mecedes engineering dept. at your disposal. dont be offended by this but these are the facts and i along with alot of other people have learned very expensive lessons from trying to take a short-cut to get to a disired goal. anything is possible though, if you truly want to be supercharged drive the car as is until you accumulate everything needed and gut everything electronic and go old school with a blown 318 small block. lots of luck and sorry this is so long