Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided Line Engine Components>Valve Springs- Retainers Calibration Plug Set to the

Calibration Plug Set to the Factory Oil Level to Prevent Overfilling

000 miles before service is required (depending on driving conditions)

Reduce Wind Noise At High Speed

These are robotically welded to the bar in a dedicated fixture to insure accurate hole positioning and consistent manufacturing

Speed Engineering's exhaust is mandrel bent

Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided Line Engine Components>Valve Springs- Retainers Calibration Plug Set to theIncreased Coolant Flow, Decreased Coolant Temperatures 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. Our coolant bypass kit adds a secondary