Big Gun Exhaust Rev Box CDI Unit for 2005-07 Honda TRX400EX Sportrax - 40-R22 2015 Polaris RZR 900 XC EPS 50mm Cylinder Stroke Volume Final

50mm Cylinder Stroke Volume Final Engine Displacement 700cc California Emissions FALSE Product Disclaimer Fitment Note Fitment Note Fitment Note Fitment Note Fitment Note

2011-12 Polaris 800 SwitchBack Assault 144

2009 Honda TRX420FPE Rancher ES 4X4 with PS

1996 Yamaha T105E Cyypton F&R

Note: Does NOT include connecting rods

Big Gun Exhaust Rev Box CDI Unit for 2005-07 Honda TRX400EX Sportrax - 40-R22 2015 Polaris RZR 900 XC EPS 50mm Cylinder Stroke Volume FinalBig Gun Exhaust Rev Box CDI Unit Increases overall RPM limit Advanced timing curve Easy direct plug in replacement to stock CDI box 6 month Limited Warranty If you are looking to swap out your stock CDI box, the Big Gun 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. The Big Gun Rev Box is offered for various offroad MX and ATV models.