The combo includes: Engine - M-5 Tuned Engine 3 venturies: 6.5mm, 7.5mm & 8.0mm. Exhaust System – Ultimate EFRA 2119 pipe + manifold w/ Masterfix system. Clutch - Ultimate Racing Compak clutch with aluminium shoes and 1 mm springs UR0620-XA. Clutch Bell – UR 13T ventilated clutch bell with UR bearings. Air filter- Ultimate Racing air filter case with pre-oiled foam.