Each BLOX Racing coilover system is designed with specifically matched spring rates and shock valving to offer enthusiasts unparalleled handling characteristics, while maintaining suitable ride comfort and quality. The Tuner Series is designed to meet the needs and demands of daily driving and high performance weekends at the local road course. The Competition Series is designed for the rigors of high performance road course driving and racing. Enthusiasts are able to fine tune and maximize their suspension set-up by easily adjusting their vehicle’s ride height and corner weights. The Drag Pro Series is strictly designed for drag racing. Drag racers can properly set-up their suspension, which is often overlooked, by adjusting their vehicle’s ride height and corner weights to compensate for front end lift and rear end squatting. Greatly improves 60-ft times and high speed stability.