What is a rev box and how does it work?

A rev box, or rev limiter, is a component that controls the maximum engine speed (RPM). This aftermarket unit from Big Gun not only raises that limit but also adjusts the ignition timing curve to potentially improve performance at higher RPMs.

Is this a difficult part to install?

This rev box is designed as a direct plug-in replacement for your stock CDI box. Installation typically involves unplugging the old unit and plugging in the new one, making it a relatively straightforward process.

What is the warranty on this Big Gun Rev Box?

This Big Gun Rev Box comes with a 6-month limited warranty from the manufacturer. Please refer to the manufacturer's warranty documentation for full details.

Big Gun Rev Box 40-R19A for Yamaha Raptor 250

Name: Big Gun 08-12 Yamaha RAPTOR 250 Rev Box
Brand: Big Gun
SKU: big-gun-big-gun-08-12-yamaha-raptor-250-rev-box-t14-622844
Price: 201.01 USD
Availability: BackOrder

Big Gun 08-12 Yamaha RAPTOR 250 Rev Box

$201.01

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Big Gun 08-12 Yamaha RAPTOR 250 Rev Box. Increases RPM limit and advances timing for improved performance.

Key Features

Fits 2008-2012 Yamaha Raptor 250.
Increases the overall RPM limit over the stock CDI box.
Features an advanced timing curve for improved engine response.
Easy direct plug-in replacement for the stock CDI box.
This part is not CARB approved and cannot be shipped to California.

This rev box is designed for the 2008-2012 Yamaha Raptor 250. Please verify fitment for your specific model year.

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Product Details

If you're looking to get a little more out of your 2008-2012 Yamaha Raptor 250's engine, swapping out the stock CDI box for an aftermarket rev box can be a smart move. This Rev Box from Big Gun is a well-built option that raises the overall RPM limit beyond what the factory unit allows, and it also adjusts the timing curve to help your engine breathe a bit better at higher speeds.

This unit is designed as a direct plug-in replacement for your original CDI box, meaning you won't need to do any cutting or splicing of wires. It's a straightforward way to unlock some extra performance. The advanced timing curve works with the increased RPM limit to help your Raptor 250 feel a bit more responsive when you're pushing it.

Keep in mind that this part is not CARB approved and cannot be shipped to California. It's a solid option if you're looking for an affordable way to get more out of your machine.

Specifications

Big Gun 08-12 Yamaha RAPTOR 250 Rev Box

Key Features

Product Details

Specifications

Frequently Asked Questions