Banks Power Techni-Cooler System for 2004-2005 Chevrolet/GMC 2500HD/3500 (6.6L) 25978

Fits 2004-2005 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (6.6L).

The Banks Power Techni-Cooler System (MPN 25978) is engineered to maximize air density and cooling efficiency for 6.6L diesel engines. By increasing the core area by 25% and total volume by 34%, this system delivers cooler, oxygen-rich air to the cylinders for higher continuous power and lower Exhaust Gas Temperatures (EGTs). Unlike factory units that use restrictive designs, the Techni-Cooler utilizes rugged, custom-machined cast end tanks and 3-inch mandrel-bent boost tubes to ensure maximum flow and durability under high-boost conditions.

By lowering boost air temperatures and increasing density, the Techni-Cooler allows your engine to maintain power and fuel economy even during heavy towing or extreme loads. This direct-replacement system installs into factory mounting points for a secure and reliable fit.

• 25% larger core area and 34% more internal volume than stock
• 3-inch mandrel-bent boost tubes for superior, unrestricted airflow
• Rugged cast end tanks resist rupture and optimize air distribution
• Reduces EGTs and improves fuel economy and engine durability
• Packs cooler, denser air into cylinders for constant-duty power
• Direct fitment using factory mounting points
• Manufacturer Part Number: 25978
• 2-Year Warranty

Vehicle Fitment