slip-ons do nothing more than change the noise your ride makes. Full system exhausts will let you drop weight over OEM and you will make more power with a re-map (FI) or re-jet (carb). As far as titanium, carbon, and alum go....usually they are talking about the sleeve on the muffler. Its all up to you on how you want it to look. Try to find some dyno sheets of different exhaust systems and that should tell you some of what you are wanting to know. I'm running a yoshimura RS-3 right now and looking to get rid of it in favor of the Brock Gen 3. Different people will tell you different things, thats why there are so many choicesChicagoGuy13 said:what kind of exhaust should i be looking for? ive seen lots kinda confusing...whats all the difference between titanium, carbon fiber, aluminum, and full systems and just slip-ons???