Banks 25959 Boost Tube Upgrade Kit for 2011 Chevy/GMC 2500/3500 6.6L Duramax, LML

OEM 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.

Fitment Note

Not compatible with 2011 Duramax with Active Brake Control/Trail Brake 

This kit is designed to work with the stock intercooler or aftermarket intercooler with stock inlet and outlet size and location.

Key Features

• Complete set of left and right side boost tubes with silicone couplers.
• Works with the stock or aftermarket intercooler with stock inlet and outlet size and location
• Huge increase in size and flow over stock (3.5-inch vs 2.5/3.38-inch)
• These boost tubes are designed for serious horsepower.
• Up to 105% greater flow area compared to stock.
• Constant diameter tubing for the best flow
• Mandrel-bent aluminized steel construction
• 4- and 5-ply heavy-duty silicone couplers
• Spring-loaded constant tension clamps
• Greater cooling capacity
• Perfect fit and finish
• Lower EGTs

Specification

Banks boost tubes are larger than the factory pipes and designed to work with the stock elbow and intercooler to improve airflow, and allow the turbocharger to spool up faster.

Banks' hot and cold side tubes have up to 105% percent greater flow area than stock tubes. Produced from high-quality aluminized steel, the tubes are mandrel bent and constant diameter. This allows for a quicker turbo spool. Better flowing intercooler tubes improve retention of boost pressure (increases density) between turbo, intercooler, and intake resulting in maximum horsepower. Our powder-coat finish stops before the end of the tubes for better grip ensuring our 4- and 5-ply heavy-duty high-temperature silicone couplers hold tight under high-boost conditions. Spring-loaded constant tension clamps maintain a stronger grip to prevent leaks or blown boots.

Why it is Better

Breath Better With Banks

Better flowing intercooler tubes results in less boost pressure loss allowing for more air and fuel to be delivered to your engine resulting in maximum horsepower.

Banks hot side Boost Tubes feature a 105% greater flow area than OEM hot side, with 14% greater flow are on the cold side.

Unlike factory LML boost tubes which are known to blow out and cause boost leaks. Banks Boost Tubes use heavy duty 5 ply silicone couplers and steel 3.5" tubes designed to take the pressure and last.

This kit is designed to work with the stock intercooler (or aftermarket intercooler with stock inlet and outlet size and location).