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.

Features:

• Saves 10.9 lbs Over Stock
• Removes Exhaust Valve
• Eliminates Catalytic Converter
• Comes with M18 O2 Bung
• Stock 95 dB @7,000 RPM
• M4 112 dB @7,000 RPM
• Includes with Q1 Quiet Insert
• Stage 2 Quiet Insert Q3 Sold Separate