2003-2004 Predator 500 Rev Box (BIG40-R10) coil-spacer Full-Race recommends 2000°F Ceramic Coating

Full-Race recommends 2000°F Ceramic Coating on our manifolds

longer gear life by actively deflecting oil back onto the ring gear and into the pinion gear for optimal lubrication and reduced heat and wear

Can 3x the life of injection components

Built from premium-grade materials

Provides between 1- to 2- inch lift depending on OE leaf pack options

2003-2004 Predator 500 Rev Box (BIG40-R10) coil-spacer Full-Race recommends 2000°F Ceramic CoatingThe Big Gun Rev Box for the Polaris Predator 500 is a high performance electronic upgrade designed to unlock the full potential of your engine. As an affordable alternative to expensive OEM replacement CDI boxes, this unit is engineered to provide more aggressive power delivery. By increasing the overall RPM limit over the factory settings and advancing the timing curve, the Big Gun Rev Box allows your engine to pull harder for longer, providing a