Fits on Piaggio engines. Sprinting exhaust for the highest performance on 80cc cylinders. This exhaust has proven itself at 2Fast4Race, TCR , Malossi BigBore 77 and 86cc cylinders. More volume compared to the 70cc exhaust designs to cope with the higher displacement. Wide powerband, very high torque and power and great overrev capacity. According to many sprinters still the best performing 80cc exhaust on the market. Including aluminium silencer, CNC machined exhaust manifold with O-ring, mounting bracket, springs and bolts. Straight model.