Dude I dont know whos bike your running down, But if your running down piped and ported banshees that aint saying to much for the person that did the porting or maybe the rider, Because you aint even gonna come close to my FAST ported shee with your mods. If you want a fast bike you will have to end up porting it or your just wasting time IMHO. Give Jeff @ FAST a call it will be the best $350 that you'll spend on your shee for sure.