Fluidampr 830121 Harmonic Damper 11-16 6.6L GM Duramax LML ARB-RD171 These shocks are tuned and

These shocks are tuned and valved specifically for the best on and off road performance

GREATLY extending bushing life

and has an integrated rope anchor for easy rope installation

Minimum required modifications to run the TNT-R software would be an upgraded turbo

Fluidampr 830121 Harmonic Damper 11-16 6.6L GM Duramax LML ARB-RD171 These shocks are tuned andEliminate torsional vibrations to smooth out your RPM's for a quieter, smoother running engine that also results in a broader powerband and more overall power. Proudly made in the U. S. A. Each time the air fuel mixture inside a cylinder is ignited, the combustion that occurs creates a torque spike that is applied to the crankshaft through the piston and rod. This torque spike is so severe that it not only turns the crankshaft, it actually twists the