---tab Description--- Description The SPELAB 6.6L Duramax intercooler is manufactured with heavy-duty cast aluminum end tanks and a stout bar-and-plate core, designed to decrease intake temperatures, improve airflow, and reduce pressure drop. By decreasing pressure drop this intercooler will extend the life of your turbocharger and improve the efficiency of your 6.6L Duramax.The SPELAB 6.6L Duramax intercooler features a core with greater volume than the factory cooler; this results in numerous performance benefits including increased pressure tolerance and lower EGTs. We engineered this intercooler to provide substantial benefits on a stock truck, and also to support the power and boost levels of a highly modified truck. Fitment 2001-2005 Chevrolet/GMC Sierra 2500HD 3500HD LLY LB7 6.6L Duramax Key Features Bar-and-Plate Core ConstructionDelivers superior cooling capacity and strength compared to OEM-style tube-and-fin intercoolers. Cast Aluminum End TanksDesigned for maximum durability and optimized internal airflow. Mandrel-Bent Cold-Side Intercooler PipeIncreases flow and reduces intake turbulence. Reduced Pressure DropBoosts turbo efficiency, reduces turbo strain, and enhances throttle response. Lower Intake Air Temperatures (IATs)Improves combustion and performance while reducing EGTs. DuraCore™ Reinforcement TechnologyProvides outstanding resistance to heat, fuel, oil, and pressure. High-Quality T-Bolt Clamps IncludedEnsures consistent clamping force even under extreme conditions. 34% Larger Core for Maximum Cooling Efficiency and Performance Gains The SPELAB Intercooler features a 3.35-inch bar-and-plate core, offering a significant upgrade over the factory's 2.48-inch core, resulting in a 34% increase in size. When comparing the bar-and-plate core to the traditional tube-fin design, there's a notable 32.5% increase in core volume. This enhanced design improves airflow and cooling efficiency, making it an ideal choice for boosting the performance and durability of your vehicle. Specifications Core Type Bar-and-Plate Material Cast Aluminum End Tanks Cold-Side Pipe Mandrel-Bent Polished Aluminum Inlet / Outlet Size 3.0 in Core Thickness 2.05 in Core Length 38.27 in Core Height 18.86 in Overall Length 45.6 in Overall Height 23.4 in Overall Width 8.2 in ---tab FAQ--- FAQs Q: What is the difference between this bar-and-plate intercooler and the factory one?A: The SPELAB intercooler features a bar-and-plate design for superior strength, better heat dissipation, and less pressure drop compared to the factory tube-and-fin design. Q: Does this intercooler require any cutting or modification to install?A: No. This is a direct bolt-on replacement for the factory intercooler and requires no cutting or custom fabrication. Q: Will this intercooler support a tuned or modified truck?A: Absolutely. It is engineered to handle increased boost pressures and higher airflow demands of heavily modified 6.6L LLY LB7 Duramax engines. Q: What benefits will I notice...