http://www.youtube.com/watch?v=aTl1gNZf-cI
my all i have is a generic sri and apexi ws2 exhaust(no cat) and the gsr has the same except a vibrant 4-2-1 header, and high comp. headgasket and valves, also vafc tuned. the gsr had one extra passsenger, and his second gear syncro is bad, so thats...