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Banks Boost Tube System, 2004.5-2010 Duramax LLY/LBZ/LMM (Driver Side)

Thoroughbred Sku #: BAN25936
Manufacturer Sku #: 25936

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Product Details

Product Name: Banks Boost Tube System, 2004.5-2010 Duramax LLY/LBZ/LMM (Driver Side)
Manufacturer: Banks
Manufacturer Part #: 25936
Thoroughbred Diesel Part #: BAN25936
Fitment Notes: 2004.5-2010 Duramax LLY/LBZ/LMM

Increases flow area up to 65% over stock
Banks' huge 3-inch boost tube. Stock tube is smaller diameter with tighter bends which hurts flow. Banks boost tube is 3-inch constant diameter mandrel-bent Aluminized Steel with larger radius bends. More air allows for more fuel which means more horsepower.

Banks boost tube is larger than the factory pipe and designed to work with the stock elbow and intercooler to improve airflow, and allow the turbocharger to spool up faster.

Banks cold side tube has 65% greater flow area than stock tube. Produced from high-quality aluminized steel, the tube is mandrel-bent and constant diameter. This allows for quicker turbo spool. Better flowing intercooler tube improves retention of boost pressure (increases density) between turbo, intercooler, and intake resulting in maximum horsepower. Our red powder-coat finish stops before the end of the tube 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.

Banks Boost Tube System Features:

  • Huge increase in size and flow over stock (3.5" vs 3.0")
  • Allow the turbo charger to spool up faster
  • Improves airflow
  • Driver side tube
  • Greater cooling capacity
  • Lower EGTs
  • Mandrel-bent aluminized steel construction
  • Constant diameter tubing for the best flow
  • Perfect fit and finish
  • 4- and 5-ply heavy-Duty silicone couplers
  • Spring-loaded constant tension clamp
  • Tube has 2.375 in. reduction
  • Works with stock intercooler or aftermarket intercooler with stock inlet and outlet size and location
  • For more information on Banks call us at 1-866-737-4966


  • Diameter: 3"
  • Material: Aluminized Steel
  • Finish: Red powder-coated

Larger Diameter:  

  • Banks: 3"
  • Stock: 2.375"

Banks cold side has  65% greater  flow area than OEM cold side.

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

Works with:
- Stock intercooler
- Stock intake elbow
- Aftermarket intercooler with stock inlet/outlet size and location


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