Herr Jugs Racing(site sponser) is the absolute best spot to have your cylinders ported PERIOD! Kevin Herr did a dune port job and on my T5 piped 03 banshee, and let me tell you this is an extreme day and night difference. Kevin ported my cylinders and milled the head.. now i have a 65 horsepower banshee! My bike is a rocket now, i could not believe how much more power i have now that its ported! crazy mid and topend, and very smooth powerband hit.. all gears rip and pull super hard, even 6th gear is crazy!!! i smoke 450s and 700s with ease!!!! Kevin at Herr Jugs racing the shit!!