Banks Power Intercooler Upgrade (2004.5-2005 GM HD 6.6 Diesel)Optimizes the boosted air density for higher continuous power and lower exhaust gas temps. Restriction free for superior flow with 25% larger core area and 34% more volume. Big boost tubes & durable cast end tanks pack cool, dense air into cylinders. Cooler EGTs, more MPG & constant duty power. It doesn't get any cooler than Techni Cooler 50 State Compliant CARB E. O. D 161 90 Key Features Optimizes air pressure and distribution going into the intake