07-18 Cummins 6.7 Fleece Coolant Bypass Kit Years:13-18 Drop exhaust gas temperatures and

Drop exhaust gas temperatures and set the stage for all the performance you want

Rear Planet

Includes light sensitivity meter to dim screen as ambient light decreases

This EGR Cooler kit includes one horizontal and one vertical EGR cooler

Combination Exhaust Brake & TapShifter

07-18 Cummins 6.7 Fleece Coolant Bypass Kit Years:13-18 Drop exhaust gas temperatures andIncreased Coolant Flow, Decreased Coolant Temperatures See Video at bottom for a youtube install video The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure.