Ok guys quit fighting LOL Jk I have 2 questions as I am very interested in doing my exhaust on my 2009 the day it comes in so here goes which exhaust would be the loudest Zoomers or SLP and are both systems a complete bolt on or how much actual cutting and or welding must be done to install them? I'm counting on Andre@edge and Kevin2323 for some help with answers PLEASE[sm=feedback.gif][sm=boohoo.gif]