M4 Full System Exhaust Carbon Canister for Yamaha R7 (20521-2025)

M4 Performance Exhaust designs and manufactures high quality exhaust systems for all popular sport bikes. They create full systems and slip-ons that are dyno-tuned with precision for optimal performance and sound. Large diameter dyno tuned system for ultimate performance 304 stainless steel tubing +7% horsepower over stock system 7.7 lb weight savings vrs stock Stage 1 Q8 and State 2 Q6 Quiet inserts available but sold separately Does not meet emission requirements for street or highway use.