Rev Box

Select your vehicle to see Rev Box that fit

Rev Box Ignition Upgrades

A rev box is an aftermarket ignition control unit that takes the place of the stock box. It changes how the ignition behaves, usually by raising or removing the factory rev limit and adjusting spark timing. Riders fit one so a modified engine can keep pulling further before it signs off. It makes the most sense on a bike that already has other engine upgrades.

Right now we have 1 rev box in stock, from Big Gun: the Big Gun ALL Honda XR/CRF 50/70/80/100 Rev Box. It is made for the Honda XR and CRF models named in its title, a popular base for pit bike builds.

  • Confirm the box matches your exact model and engine before you order.
  • Consider your other mods. A higher rev limit helps most when intake, exhaust and jetting can support it.
  • Check that the connectors match your wiring harness.
  • After fitting, retune if needed and keep an eye on engine heat and wear when running at higher revs.

Use the vehicle selector to pick your vehicle and see what fits.

Rev Box Ignition Upgrades

A rev box is an aftermarket ignition control unit that takes the place of the stock box. It changes how the ignition behaves, usually by raising or removing the factory rev limit and adjusting spark timing. Riders fit one so a modified engine can keep pulling further before it signs off. It makes the most sense on a bike that already has other engine upgrades.

Right now we have 1 rev box in stock, from Big Gun: the Big Gun ALL Honda XR/CRF 50/70/80/100 Rev Box. It is made for the Honda XR and CRF models named in its title, a popular base for pit bike builds.

  • Confirm the box matches your exact model and engine before you order.
  • Consider your other mods. A higher rev limit helps most when intake, exhaust and jetting can support it.
  • Check that the connectors match your wiring harness.
  • After fitting, retune if needed and keep an eye on engine heat and wear when running at higher revs.

Use the vehicle selector to pick your vehicle and see what fits.