Hi, thinking about doing this on my E46 M3 and replacing with a straight through pipe. Just the secondary cats. To increase the noise coming from the car..
Anyone here done this or have any advice regarding this?
When I'm on the motorway and someone passes me with a 'zorst which can still be heard when they're a quarter of a mile ahead, I just wonder what level of misery is being endured by those inside the vehicle.
