If you're looking for one of the best catback exhausts, check out the exhaust system by Corsa. It's one of the cleanest exhaust systems around, the fitment is very good and the metal they use is stainless steel. If you use the proper stainless steel cleaner and a microfiber cloth and clean the system every year, this exhaust system can last for a lifetime. The Corsa exhaust system is no ordinary exhaust either, it flows very well, expect to pick up an extra 25 horsepower. Another feature I like about the Corsa exhaust system are the high polished tips, they stand out from the other exhaust systems, they are very sharp. All this though comes at a very high price though, expect to pay around $800 for a Corsa exhaust system, but personally I think it's well worth it. This is truly one of the best premium exhausts around you can get for an American muscle car. And I almost forgot, the tone coming from this exhaust system is real clean, expect no drone or rasp from the Corsa catback exhaust.