Anyways I finaly got my SS Magnaflow put on after sittin under my futon since march. I got the offset in/out 2 1/4 model. It is 2 1/4 axel back and I have a newer resonator and stock Si b pipe and exhaust manifold and High Flowing cat. It sounds real good. Its agressive sounding. No raspy sounds. Its pretty quiet but lets you know when your gettin on it. Its is fairly quiet compare to most aftermarket exhaust set ups. I noticed more kick in 4500rpms+ over my old fart canister. For anyone looking for a quality muffler for a good price check out magnaflow. I had a ultra flo a long time ago and it was real good too but was a lil higher toned but it was a awesom muffler as well. I hope I helped some would be ricer by spreading the word to watch out for large canisters.