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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.
Big Gun 99-04 Honda TRX 400EX Rev Box
Manufacturer Part Number: BIG40-R01
$126.99
Sale price
$126.99
Regular price
Product Details Overview and manufacturer notes
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2004 | Honda | TRX400EX Sportrax | Base |
Vehicle Fitment Compatible vehicles and fitment notes
Fitment supportVerify compatibility before ordering.
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