I got my N1 put on this saturday. Butt dyno shows a little increase in mid/upper range power. It purrs nicely at idle, but give it some gas and it growls. Its not as loud as i thought it would be. At cruising speeds i can barely hear it when listening to the radio even with the windows down. All-in-all i am very impressed both with the muffler itself, the work done, and the performance/sound. I likey!
Dave "The Bald Bull" 97 RS Member of the infamous Barcelona Red Crew
"Free people will never remain free, if they are not willing, if need be, to fight for their vital interests"
"It is better to have died in the ranks of the vanquished warriors th