XDP HEAVY DUTY HIGH BOOST VALVE SPRING SET FOR 1998.5-2022 DODGE RAM 5.9L/6.7L CUMMINS 1999-2003-7-3l-powerstroke and providing a 30% increase

and providing a 30% increase in power

Will fit BOTH Single and Dual Alternator Engines

• Race-inspired performance for increased vehicle stability

and additional bottom-out protection

XDP HEAVY DUTY HIGH BOOST VALVE SPRING SET FOR 1998.5-2022 DODGE RAM 5.9L/6.7L CUMMINS 1999-2003-7-3l-powerstroke and providing a 30% increaseControl the valvetrain in your modified 1998. 5 2022 Dodge 5. 9L 6. 7L Cummins with the XDP Heavy Duty High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels. Common upgrades like aftermarket tuning and fueling and turbo upgrades can cause valve float that results in severe engine damage. Intake valves can also be blown open from added boost