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Big Gun Part # BIG40-R27A

Big Gun 00-07 Honda XR 650R Rev Box - 40-R27A

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4.8 on Google992 store reviews
Canadian since 2005Mississauga, Ontario

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.

  • Increases overall RPM limit
  • Advanced timing curve
  • Easy direct plug in replacement to stock CDI box
  • 6 Month Limited Warranty

Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may have a handling fee depending on your location; pickup in Mississauga has no fee.

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