Product Description
M4 Performance Exhaust designs and manufactures high quality exhaust systems for all popular sport bikes. We create full systems and slip-ons that are dyno-tuned with precision for optimal performance and sound.
- Twin black retro-drag style slip-ons give the busa a cool, unique look and sound! Saves 21lbs over stock and adds 6.2 horsepower @ 11,000 RPM.
- Comes with Stage 1 Q1 Quiet Inserts Installed
- Stage 2 Q3 Quiet Inserts Sold Separate (2 Required)
