They have an amazing 23 HP gain from just the twin pipes. These pipes will take the stock HP of 137 and crank it up to 164 at 8000 RPM. These pipes are the best on the market, just ask anyone! We, here at CPI, pride ourselves in our ability to get the most gains out of our pipes! These pipes are easy to install and require minor jetting, clutching, and air box changes.
