11-13 HONDA CBR250R: Leo Vince SBK GP Corsa Slip-On Exhaust (Carbon Fiber) LeoVince USA unleashes the new GP Corsa high-power, low-cost race slip-on for small displacement bike owners. The new GP Corsa exhaust gives owners the ability to reduce the weight and improve their horsepower in a very sleek design package. Best of all it is delivered at an incredibly reasonable price. This is the most affordable SBK slip-on LeoVince has ever delivered to the North American market. While this slip-on is delivered at a very low cost, its construction is identical to other LeoVince slip-ons and it is engineered to provide big gains for your bike.