CSF High Performance Heavy Duty Bar and Plate Aluminum Intercooler Core 8067 CSF Intercooler Cores Are the World's Best Intercooler Cores Compatible with Fabrication of Custom Intercoolers. They Offer Intercooler Cores in Many Different Styles and Sizes Including Cross-Flow, Vertical-Flow, the 6 In. Wide Magnum Series, and Ultra-Efficient Liquid-To-Air (Water-To-Air) Cores Rated Compatible with Up to 2000 Horsepower.