Rev Box - Kawasaki KLX 400R (01-03)

If you are looking to swap out the stock CDI box on your Kawasaki KLX 400R, 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.

• Increases overall RPM limit
• Advanced timing curve
• Easy direct plug in replacement to stock CDI box
• 6 Month Limited Warranty

* On "S" model only, you must cut green wire on 8-prong plug *