BIG GUN - REV BOX - MX - HONDA 40-R23

MFG Part Number: 40-R23

Increases overall RPM limit

Advanced timing curve

Easy direct plug in replacement to stock CDI box

6 Month Limited Warranty

Expertly crafted from premium materials

Quality design and workmanship

Durable construction for long service

Rev Box by Big Gun®. If you are looking to swap out your stock CDI box, 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.