The Big Gun EVO R Series Full System Exhaust for the Yamaha Raptor 660 is a comprehensive performance upgrade rooted in a rich heritage of power development. As a tried-and-true series in the off-road and sport ATV world, the EVO R is engineered to transform your machine by replacing the entire restrictive factory exhaust from the engine port to the tailpipe. This full system is designed to shed significant weight, provide substantial gains in horsepower and torque, and deliver a deep, aggressive exhaust note that far surpasses the stock sound.

Features

• Complete Performance Overhaul: Replaces the entire stock exhaust system with a high-flow head pipe and muffler combination for maximum power gains.
• Race-Proven Heritage: Developed through years of MX and off-road competition to ensure peak engine efficiency and reliability.
• Significant Weight Savings: Constructed from lightweight materials to reduce the overall mass of the vehicle, improving handling and acceleration.
• Optimized Powerband: Specifically tuned to increase throttle response and provide a broader, more usable range of power.
• Superior Sound Quality: Produces a rich, throaty tone that defines the high-performance character of the Raptor 660.
• Durable Construction: Built to withstand the extreme heat and vibration of intense trail and track riding.

Notes

• This is a complete full system exhaust, including both the head pipe and the muffler.
• Includes a removable screen-type spark arrestor.
• All necessary mounting hardware is included for a complete installation.