- Premium Quality: Crafted from high-quality metal and plastic materials, this CDI box offers excellent electrical and thermal conductivity. Its rust-proof and wear-resistant design ensures durability and longevity in any environment. - Broad Compatibility: The 4-pin dual connector CDI is compatible with a wide range of four-stroke vehicles, including ATVs, dirt bikes, go-karts, scooters, and mopeds. It supports engine sizes from 50cc to 110cc. To ensure optimal performance, verify the number of connector pins and their configuration. - Enhanced Performance: Optimize your vehicle's ignitability with this AC-CDI unit. Engineered for superior performance and reliability, it guarantees stable operation in demanding conditions, providing peace of mind during your rides. - Simple Installation: Designed for easy installation, this AC-CDI features 4 prongs for a direct connection. This straightforward setup process makes it accessible for both DIY enthusiasts and professional mechanics, allowing for quick replacement or upgrade of ignition systems. Use Scenarios: 1. Upgrade your dirt bike's ignition system to improve throttle response and acceleration during off-road adventures. 2. Replace a faulty CDI in your go-kart to ensure reliable starts and smooth operation on race day. 3. Enhance the performance of your scooter for daily commutes, ensuring efficient fuel consumption and a reliable ride.