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Boost Tube Upgrade Kit Red powder-coated 2004.5-2009 Chevy/GMC 2500/3500 Duramax 6.6L

Boost Tube Upgrade Kit Red powder-coated for 2004.5-2009 Chevy/GMC 2500/3500 Duramax 6.6L

Emissions Compliant: D-161-107
Increase flow area up to 65% over the stock boost tubes with Banks' huge 3-inch boost tubes. Stock tube is smaller diameter with tighter bends which hurts flow. Banks boost tubes are 3-inch constant diameter mandrel bent Aluminized Steel with larger radius bends. More air allows for more fuel which means more horsepower.
Will work with a stock intercooler or as an add on to Banks Intercooler
Was: $154.50
Sale: $139.05
Save: 10%
Save: $15.45


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 tubes have 65% greater flow area than stock tubes. Produced from high-quality aluminized steel, the tubes are mandrel bent and constant diameter. This allows for quicker turbo spool. Better flowing intercooler tubes improve 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 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.

  • Huge increase in size and flow over stock (3.5" vs 3.0")
  • 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
  • Works with stock intercooler or aftermarket intercooler with stock inlet and outlet size and location


  • 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 tubes 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

  • Designed to give you greater cooling capacity
  • allow the turbo charger to spool up faster
  • Improves airflow
  • Diameter: 3.000 in.
  • Material: Steel
  • Finish: Red powder-coated
  • Driver side tube
  • Includes spring loaded hose clamps
  • Tube has 2.375 in. reduction
  • Will work with a stock intercooler or as an add on to Banks Intercooler
  • Fitment Notes: 2004 does NOT fit LB7



  • 25936
  • 25936
  • 801279259362
  • Banks Power
  • New

Shipping Information

  • Item Requires Shipping
  • 10.0 lbs.
  • W39.0000” x H9.0000” x L11.0000”