Banks Boost Tubes Upgrade 2011-2016 Duramax LML Cognito 4" 82% less backpressure than stock

82% less backpressure than stock for more flow

The Edge Products 85301 Evolution CS2 (California Edition) for your GM Duramax

This unit also allows you to adjust your Tire Pressure Monitoring sensors (TPMS) to remove the low-pressure warning light when running lower tire pressure

9-inch wide wheel with 5-Inch back space

Banks Boost Tubes Upgrade 2011-2016 Duramax LML Cognito 4" 82% less backpressure than stockOEM replacements for left and right side boost tubes with silicone couplers. Up to 105% greater flow area compared to stock. Better flowing intercooler tubes result in less boost pressure loss allowing for more air and fuel to be delivered to your engine resulting in maximum horsepower. These boost tubes are designed for serious horsepower.