mad4slalom
Senior member
probably been asked and answered before, but the aftermarket carbon airboxes from evolve and the like are eye wateringly expensive, i know there is a load of r and d and dyno testing etc etc but is it possible to order the oem airbox from the m3 csl and if so how much is it or is there a lot of setting up work to make it run properly ?, saw the video posted on here of the imola csl , it did sound awesome ! 
