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Banks Power Techni-Cooler Intercooler Fits 2004-2005 GMC/Chevy 6.6L LLY Duramax

Was: $1,621.11
Sale: $1,459.00
Save: 10%
Save: $162.11

FREE Ground Shipping


The stock intercooler has an inferiority complex. No wonder?it’s smaller than Techni-Cooler in every aspect: boost tubes ? core area ? inlet/outlet ? even the end tanks. And most competitors use poorly designed sheet metal end tanks and provide inadequate flow volume. Banks improves airflow into and out of the intercooler with big mandrel-bent 3” boost tubes. Large, rugged, high-efficiency cast end tanks that won’t rupture under high-boost conditions. A huge inlet and outlet. And a 25% larger core area with a whopping 34% improvement in volume.

Removing restrictions and improving airflow lowers boost air temps. This increases the density and oxygen content of air entering the engine, which amplifies power, lowers exhaust gas temps (EGTs) and improves fuel economy. And when EGTs are tamed, the tuner doesn’t need to limit fuel delivery. So you get higher continuous, useable power and more power at any EGT. Very cool! Everything about Banks Intercooler is bigger, including the core area, which has 34% more flow volume. Increases air density for more continuous power. It doesn't get any cooler than Banks Intercooler.



  • 2-year Warranty
  • Maximizes Boost Air
  • Lowers exhaust gas temps
  • Wide-open inlet and outlet
  • Reduces boost pressure loss
  • 3 inch mandrel-bent boost tubes
  • Dramatically increases air density
  • Lower restriction for superior flow
  • Packs cool, dense air into the cylinders
  • 25% thicker core with 34% more volume
  • Improves Power, Durability & Fuel Economy
  • High-efficiency custom-machined end tanks
  • Cooler EGTs, more MPG & constant-duty power
  • High-efficiency custom-machined durable cast end tanks



  • 2004.5-2005 GMC Sierra 6.6L LLY Duramax
  • 2004.5-2005 Chevrolet Silverado 6.6L LLY Duramax



  • Direct Replacement For 6.6L LLY Duramax Models
  • Banks Techni-cooler comes with an all black appearance. Banks Logo is for display purposes only.


  • 25978
  • 25978
  • 801279259782
  • Banks Power
  • New

Shipping Information

  • Item Requires Shipping
  • 140.0 lbs.
  • W11.0000” x H36.0000” x L29.5000”
  • FREE Ground Shipping

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