Push your Honda TRX 400EX harder with the Big Gun Rev Box, designed to increase the overall RPM limit and provide an advanced timing curve for improved high-RPM performance. It helps your engine keep pulling when the stock CDI reaches its limit, giving you more room to take advantage of the upper end of the powerband.
Installation is quick and straightforward thanks to the direct plug-in design that replaces the stock CDI box without unnecessary modifications. Backed by a 6-month limited warranty, it’s an easy performance upgrade for riders looking to get more from their TRX 400EX. Add the Big Gun Rev Box to your cart and raise your RPM ceiling.
Features:
- Increases overall RPM limit
- Advanced timing curve
- Easy direct plug in replacement to stock CDI box
- 6 Month Limited Warranty
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