Yamaha R1 RT5 Exhaust Jardine Slip On R1 , Stainless Steel & Carbon FibreExhaust Here at Jardine, we have a history of building performance exhaust systems for factory teams such as American Honda's roadracing program. Every system is painstakingly made to exacting tolerances by skilled craftsman utilizing the latest manufacturing techniques. Beginning with our design team, we use Solid Works computer imaging as our baseline. It's stronger, lighter, quieter and more powerful!