I've been lurking the exhaust forum for the last 2 weeks trying to decide on an exhaust for my truck. I liked the magnaflow but couldn't bring myself to spend the extra 200 (i got the stainless gibson) because I've got some work to do on the GTO. All the vids up here made the gibson seem like it has the meanest growl of the available options for us 4.2 guys, is everyone happy with theirs on a long-term basis?