Hello new to buell xb been looking around about race kits. I have a 03 xb9r with a k&N filter and modified air box. erik buell ecm with full laptop programing. im running a buell racing exhaust. was thinking about a jardine rt1. but charts on american sports bike say it will only give 1 or 2 more hp and torque and 2 db sound different. so is it really work the 300 cash to get it. thanks for your time