Big Gun Exhaust Rev Box UNLIMITED - 40-R21
Customer Ratings
Customer Reviews
⭐️ Lionparts has awesome customer service and can’t thank them enough for their help in getting my order/setup correct! - Tom M.
⭐️ Best customer service I have experienced in a very long time. Product is high quality and fits perfect - Christy
⭐️ LionParts has been very consistent, and helpful finding the necessary parts for my needs! - Curtis
⭐️ Had an awesome experience with Lionsparts! I bought my KFI snow plow from them through Trevor who was very knowledgeable and helpful! - Eric
Big Gun Exhaust Rev Box UNLIMITED - 40-R21
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REV BOX
If you are looking to swap out your stock CDI box, the Big Gun 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. The Big Gun Rev Box is offered for various offroad MX and ATV models.
Features
- Increases overall RPM limit
- Advanced timing curve
- Easy direct plug in replacement to stock CDI box
- 6 month Limited Warranty
Fitment
- 2004-2008 Yamaha YFM50R Raptor
Brand: Big Gun Exhaust
Part Number: 40-R21
REV BOX
If you are looking to swap out your stock CDI box, the Big Gun 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. The Big Gun Rev Box is offered for various offroad MX and ATV models.
Features
- Increases overall RPM limit
- Advanced timing curve
- Easy direct plug in replacement to stock CDI box
- 6 month Limited Warranty
Fitment
- 2004-2008 Yamaha YFM50R Raptor
Brand: Big Gun Exhaust
Part Number: 40-R21
