Fleece Performance 07.5-12 Dodge 6.7L Cummins Coolant Bypass Kit (07.5-15 6.7L) ✨ Newest Formula tests show an exciting 45%

tests show an exciting 45% increase in flow

Increase the structural rigidity of the whole axle

Optional "True Dual" Cat-Back

this high flow "oiled" conical performance filter provide maximum protection with highest cumulative filtration efficiency for severe duty environments

Fleece Performance 07.5-12 Dodge 6.7L Cummins Coolant Bypass Kit (07.5-15 6.7L) ✨ Newest Formula tests show an exciting 45%Another product from Fleece Performance built out of necessity is the 2003 2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300 350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the system,