Designed and tuned for the ultimate, bolt-on, dual purpose rig, the Performance 2.5″ King custom shock project tames anything the road, freeway or dirt trails have to offer.
Front Lift
Rear L...
Results in torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs...
Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full...
