Indian Motorcycle riders will experience increased performance from the powerful Thunder Stroke® 111 engine with these new Indian Motorcycle Stage 2 Performance Cams. When used in conjunction with the Indian Motorcycle Stage 1 Exhaust and High Flow Air Cleaner (each sold separately), these 50-state emission-compliant cams unleash an extra over 13% horsepower and over 7% more torque than a stock engine. With the cam kit installed, a rider will enjoy enhanced throttle response and significantly greater power across the powerband. The counter-balanced engine continues to deliver power smoothly and a rider will enjoy a great Indian Motorcycle cruising experience. Dealer installation required.