BIG GUN Exhaust Rev Box for Mini ATV Yamaha (Part #40-R21)

Increases overall RPM limit
Advanced timing curve
Easy direct plug in replacement to stock CDI box
6 Month Limited Warranty
Expertly crafted from premium materials
Quality design and workmanship
Durable construction for long service


Rev Box by Big Gun®. If you are looking to swap out your stock CDI box, the Big Gun Over Rev Box is an affordable alternative to highly-priced OEM replacement boxes. It increases the overall RPM limit over the stock box and advances the timing curve.

Enhance the performance of your Yamaha mini ATV with the BIG GUN Exhaust Rev Box, model number 40-R21. Designed specifically for Yamaha mini ATVs, this rev box helps optimize engine response and improve throttle response for a more dynamic riding experience. Crafted with precision, it ensures reliable operation and seamless integration with your existing setup. The durable construction guarantees longevity and consistent performance even under demanding conditions.

Installation is straightforward, making it an ideal upgrade for enthusiasts looking to maximize their mini ATV's potential. The compact design fits neatly within your vehicle's electrical system, providing a significant boost without adding unnecessary bulk. Whether you're trail riding or participating in mini ATV competitions, this rev box can help you achieve better acceleration and overall engine efficiency.

Trust BIG GUN EXHAUST, a reputable brand in performance ATV parts, to deliver quality and durability with every product. The model 40-R21 is engineered to meet high standards, ensuring your mini ATV runs smoothly and performs at its best. Upgrade your vehicle today with this reliable and performance-enhancing rev box designed specifically for Yamaha mini ATVs.

Features:

• Designed specifically for Yamaha mini ATVs for optimized performance

• Improves engine response and throttle sensitivity

• Durable construction for long-lasting use

• Compact and easy to install

• Enhances acceleration and overall engine efficiency