Driveline, Performance, Tuning
Hello, i have a sport rear muffler on my e46, it sounds louder then stock. Not as i would want tho, wich one of theese 3 boxes can i remove, if i know right i think first one is cat, and second and third are muffler
So what you reccon
Where i live no need for a catalysator, only need is 1 mufffler