 
            
                    Bbr - Rev Box - 451-HXR-5001
                
            - Allows a higher rpm limit to fully take advantage of engine modifications
- Eliminates 9800 rpm rev limiter
- Ignition advance curve is optimized to work with engine modifications
- These items are designed exclusively for closed course competition use ONLY. Use on public lands or highways in the state of California is illegal
 
 
                     
                     
             
            