I love the look of quad exhausts, they just finish the back of the car off perfectly... But what price for a good exhaust with a AMG backbox? I want the AMG exhaust tips. Can I just buy a C55 exhaust and modify the spare wheel holder etc...so it all fits? Do I buy a C32 back box and get a custom fit exhaust to match? I'm thinking it'll cost a couple of grand for a good exhaust... Your expert opinions please!