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Easily adjust boost levels from under the hood with the turn of a knob with no additional tools needed
Compact design with a diameter of 12-in and an overall thickness of only 2
"name": "What is the difference between these headers (25-1012) and the 1-7/8\" K1500 4WD headers (25-1011)
Factory Mounting Locations
and are air adjustable from 5 to 100 PSI
Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 2008-chevrolet-express-2500-esi8353127 Easily adjust boost levels fromIncreased 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
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