Autosport7

Seems like a good deal, if the owners are on here, can you post a review?

http://www.ebay.com/itm/Mercedes-Benz-W204-C63-AMG-Sedan-Coupe-V8-08-12-Race-Track-X-Mid-Pipe-63mm-76mm-/371035497221?pt=Motors_Car_Truck_Parts_Accessories&hash=item5663706305&vxp=mtr

jmueller

I had a pair of Top Speed mufflers on my G37 Coupe back in the day and the flanges rusted to high hell. Not sure if they use really crappy metal or if it is because I live on the beach and the salt-air takes its toll. They functioned perfectly, but the rust was unsightly.

vtune

Just take your car to any exhaust shop and they will custom weld that for you.

AMGPower88

Im interested in this as well, is it a bolt-on to stock pipes and muffler? Does it replace the resonators or cats or both?