P.A.T. MufflersCaracteristicas: Mikuni's Joe Minton designed these hot slip on mufflers that provide maximum performance when used with the Mikuni P. A. T. System Muffler contains a special straight through core for the least restrictive exhaust flow that produces more power and a blood churning sound Core is wrapped with Silent Sport packing for superior sound and greater durability than ordinary fiberglass End caps sold separately Made in the U. S. A. Peso: 15. 56