This product has been discontinued. It fits 2001 - 2005 GMC and Chevy LB7/LLY trucks with 6.6L Duramax engines. Whether you have a stock turbocharger or a big single, BD Diesel's intercooler is super - efficient. It can handle much higher boost levels than you'll ever need. Designed to manage over 500°F turbo outlet temperatures and over 130PSI of boost. The tubes have a 0.025 - inch wall thickness and enhanced inner fins, achieving 95% heat conductivity transfer. It didn't crack or separate even when tested at over 400 psi. Colder intake air lowers EGTs. BD's free - flowing Charge Air Cooler (CAC) design with streamlined external air passages cools the engine better, reduces fan noise and blade resistance, and boosts engine power and the efficiency of the radiator and air - conditioning heat exchangers. Part Number: 1042600. Features include more power, better fuel economy, lower EGTs, a 57% larger cooling surface, 95% heat dissipation, the ability to hold over 130PSI of boost, larger passages for increased airflow to the radiator, high - flow cast end tanks with support struts, and a 3 - hour install time.

How to use: First, make sure your vehicle is a 2001 - 2005 GMC or Chevy LB7/LLY with a 6.6L Duramax engine. The intercooler is designed to fit these models. It can work well whether your turbocharger is stock or a big single. Installation takes about 3 hours. You just need to follow the standard installation steps for an intercooler. Precautions: Although the intercooler can handle high boost levels and high temperatures, don't push it to extreme limits for a long time. High - pressure tests showed no cracking or separation, but over - stressing might still cause problems. Maintenance advice: Regularly check the intercooler for any signs of damage or leaks. Clean the external air passages to keep the airflow smooth and maintain the cooling efficiency. This will help your engine run at its best and keep the fuel economy high.