Specifications
- Brand
- Big Gun
- Part #
- 40-R02A
- UPC
- 40-R02A

Big Gun 05-07 Kawasaki KFX 400 Rev Box
$201.01
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Big Gun 05-07 Kawasaki KFX 400 Rev Box. Raises RPM limit and advances timing for improved performance.
Key Features
- Fits 2005-2007 Kawasaki KFX 400.
- Increases the overall RPM limit over the stock CDI box.
- Features an advanced timing curve for improved performance.
- Easy direct plug-in replacement for the stock CDI box.
- This part is not CARB approved and cannot ship to California.
Product Details
If you're looking to get a little more out of your 2005-2007 Kawasaki KFX 400's engine, swapping out the stock CDI box for an aftermarket rev box can make a notable difference. This Rev Box from Big Gun is designed to increase the overall RPM limit, letting your engine spin a bit faster than it would stock. It also features an advanced timing curve, which can help improve throttle response and overall power delivery.
This unit is a direct plug-in replacement for your original CDI box, making installation straightforward. It's a well-built option that offers a way to raise your engine's rev limit without the higher cost of some OEM replacements. Keep in mind that this part is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- Big Gun
- Manufacturer Part #
- 40-R02A
- UPC
- 40-R02A
Frequently Asked Questions
Big Gun 05-07 Kawasaki KFX 400 Rev Box
