Weller Racing Yamaha YXZ1000R Full Dual Exhaust System with Loaded Power Vision – WR Edition

Features:

• Direct bolt-on replacement exhaust system with massive 18-20 HP gains at the wheels!
• High flow replacement header (three into one design)
• Dual mufflers
• USFS approved spark arrestors
• 304 stainless steel mandrel bent tubing
• Powdercoated mufflers
• V-band clamp for easy install
• O2 sensor fitting for optional sensor
• Slip fit connections with springs for vibration dampening / long life

With our programming we modify the following:

• RPM Limiter
• Speed Limiter
• Improved Fuel Mapping
• Improved Ignition Mapping
• Improved Throttle Response
• Air Injection System Improvements
• Cooling Fan Activation Lowered