Think buy some aftermarket pipe to get more mid and top range power. Which one its best for that? Hgs, Dep,Doma,ProCircuit,Scalvini,Messico or some else? It had allready veryveryvery strong torque on low rpm because oversize pv-cover, S3 head with tightest insert and jetting stuff. Oh its 2009 300cc with brand new cylinder, reeds and so pipe is o original GG pipe and perfeckt condition. Meybe doma or dep? --> www.antithumper.700hp.com/gasserfly.html