Ignitions and Electrical› Ignition Boxes and Components
Big Gun
Big Gun 2003 Polaris SCRAMBLER 500 Rev Box
SKU: B0AC 40-R10B
Moderate — 2–4 hours
Description
Part #: 40-R10B
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.
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Big Gun |
| Part Number | B0AC 40-R10B |
Videos
Big Gun Exhaust Tech Talk - Power Box 101
2017 Klx110L BBR Rev Box Install and POSITIVE Review
Big Gun exhaust install on a Honda 250ex
Installing Big Gun Dual Exhaust On a 2007 Yamaha Raptor 700
Honda Talon 1000R Big Gun Exhaust Sound Comparison - Stock vs. EXO Stainless vs. EVO U Series
Big gun evo exhaust upgrade and power box raptor 700 2016
Klx140 Big Gun Exhaust Review. Sounds like a Big Bike!!! (Quality sound Clips)
2006 crf450r big gun exhaust
BIG GUN EVO U x 2020 Polaris Sportsman 850 HighLifter | Exhaust and Tuner Install
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy