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A demand flow design allows the pump to only send the necessary amount of fuel to the engine
In order to elevate its aesthetic allure
Custom dyno Tuning is Required with this kit
not just a billet cover to go over the existing one
To add even more style to your already impeccably designed F80
Wehrli Custom Fab WCF100405-FTB Thermostat Housing Kit - Texture Blk CORE-2700 A demand flow design allowsPurchase the Wehrli Custom Fab WCF100405 FTB Texture Black Thermostat Housing Kit from GAP for your 2001 2005 GM 6. 6L Diesel LB7 LLY today. The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2001 2005 LB7 LLY Diesel replaces the OEM upper radiator hose that normally crosses over the driver side valve cover as well as the coolant return pipe. By changing the coolant routing to an upwards and forward layout from the thermostat,