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6L Duramax LLY the upgrade it deserves with the HPS High Temp Reinforced Silicone Intercooler Boot Kit
letting you take on longer journeys with ease
this effect can be even more profound
It is easy to install and a perfect match for your existing FASS heater kit
Mishimoto Low Temperature Coolant Thermostat 89-93 Ram 5.9L Cummins ARX-880550 6L Duramax LLY the upgradeKeep your diesel running cooler and more consistent with the Mishimoto Low Temperature Thermostat. Designed to activate at a lower temperature than the factory unit, this thermostat allows coolant to begin circulating through the radiator sooner. Earlier coolant flow helps manage heat more effectively, especially when the engine is working hard! Lower operating temperatures can make a noticeable difference during towing, heavy loads, or long drives in
