Exclusive SST module, proprietary technology Incredible gains throughout the powerband Sharpens off idle throttle response Increases midrange pud and over-rev Chrome-plated for durable, long lasting finish Includes O-rings Note - Must be used in conjunction with SST Silencer This product can be used with KTM 250EXC 01-03 KTM 250MXC 01-03 KTM 250SX 01-03 KTM 300EXC 01-03 KTM 300MXC 01-03 KTM 300SX 01-03