Hi can anyone please help me, iv have a E46 328i Touring and want to get a performance exhaust system, at the moment i want to replace the cats and the system back
firstly i was looking at getting either two 100 or 200 cell cats.
secondly iv been looking around at different exhaust systems, the one i like the look of is the corsa performace system which i think is only in the US, and blueflame which i think are near liverpool as both of these system have a twin pipe from start to finish even to the piont of having 2 mufflers per side. i have also looked at powerflow but can never seem to get a straight answer out of them. so can anyone tell me if they have had a blueflame or corsa exhaust, and what is the advantage of a proper twin pipe system with separate mufflers instead of mufflers which have both pipes into one box????