Unlock the full potential of your Honda engine with the BBR Rev Box (Part Number 451-HCF-1502). This performance-enhancing device is engineered for closed course competition use, allowing you to achieve higher RPM limits and take full advantage of your engine modifications. Designed exclusively for racing enthusiasts, this rev box eliminates the restrictive 9800 RPM rev limiter and features an optimized ignition advance curve tailored for enhanced performance. Features: * Higher RPM Limit: Allows a higher RPM limit to fully take advantage of engine modifications. * Rev Limiter Elimination: Eliminates the restrictive 9800 RPM rev limiter. * Optimized Ignition Curve: Ignition advance curve is optimized to work with engine modifications. * Competition Use Only: Designed exclusively for closed course competition use ONLY. Use on public lands or highways in the state of California is illegal.