ok im thinkin about getting an exhaust on my xfire. im debating tho. my whole objective is more power and torque. noise doesnt bother me at all. i was thinkin about getting a 2 3/4 inch pipe all the way down then pu magnaflow or borla muffler. does any one think this would help? ive heard of some people goin with the duals but i dont know how much better that would be. whats the best recommendation on exhaust??? thanks.