DRZ125 '03 - '26 KLX125 '03 - '06 The key to getting your built DRZ/KLX motor to make big power. Intake is 32mm (stock 30mm) Exhaust is 28mm (stock 26mm) Available with or without Heavy-duty valve springs CARB race use only Choose Option w/ Springs $89.95 Valves Only $59.95 Ships in 3-5 business days $89.95