I am just wondering if anybody here can tell me what their highest dyno runs are. I have seen alot of people on this site that pushed 160's to the wheel with the Akra Evo II Full exhaust and PC. What is the best what exhaust pruduces the most HP at the wheel. Why do most ZX10R owners on this forum seem to prefer the Akra Evo II exhaust? I just just bought a 10R and would really like to know what exhaust to go for. I trailered my buddies bike to get it dynoed and it pushed 171 @ the wheel with a Two Brothers Racing slip on, K&N filter and a PC with the Map from PC for that exhaust. Nothing else. I filmed the dyno run and have a picture of the Dyno results sheet. What are the best mods to produce more power?