Mishimoto has released a performance intercooler for the 2001-2005 Chevrolet/GMC 6.6L Duramax.A high-performance diesel engine requires a cool, dense charge of air to reach its full power potential.Upgrade your factory intercooler to the Mishimoto all-aluminum intercooler engineered to maximize the efficiency of your Duramax.The Mishimoto Duramax intercooler is built to last, with heavy-duty cast aluminum end tanks and a bar-and-plate core, allowing for increased airflow and cooler intake temperatures.The Mishimoto Duramax intercooler features a significantly larger core than the factory unit and is designed to support substantial boost pressures an d lower EGTs, both highly advantageous on your stock or modified 6.6L.Offered in black or silver, the Mishimoto 6.6L Duramax intercooler is protected by our signature lifetime warranty.