I just recently bought my first Ktm, its is a 05 Ktm 400 EXC. I bought the bike used and the guy who owned it before me put the PowerNow on it. I never felt how the bike ran before the Powernow was put on but some people are telling me it gives it more a 2 stroke feel. The bike feels good but I just want some input on what other people feel about the PowerNow system on the 400 EXC. I was reading the Thread on the PowerNow for the 525 EXC and everyone said it didnt do much of a difference and they said It might do better for smaller bikes.