i got my magnaflow cat back installed a few hours ago! honestly though...i wish it was a little (or lot) louder. although i do like the sound of it. nice and deep. another thing...for some reason it smells like cat piss when i get out of the car right after turning it off. what could that be?! one last question...the guy who installed it said it was one of the nicest systems he has seen and that it would prolly get louder after a few days. is that true??