So I keep reading all these post about how the cat's are causing the motors to heat up too much and changing them would help with the heat. What if their just left alone. Will the bike not last as long. I haven't rode too many miles on my SG to have a problem but I plan too. I just spent a lot of money for my bike and hearing all this stuff about pipes and cats bums me out. S@#T I don't really want to spend 1500 bucks to change all this stuff. I don't care to have a loud bike but I like hearing the ones that are. BUT if it will make my bike last longer then it a no brainer. Can I change from the cat header to a not so loud exhaust and still get the heat away and better mileage? Just asking your thoughts. Mines a 2011 with the new 103 stock its fast as it is so not too worried about the speed.... OK now beat the hell out of me with your responses