CAC Boots

Charge air cooler (CAC) boots connect the turbocharger, charge air cooler and intake. We list nine: Flex Technologies hot-side boots in aramid (CAC40-300X6, CAC40-350X6, CAC40-400X6, CAC40-400X8 and CAC40-450X6), Flex Technologies cold-side boots (CAC40P-300X6, CAC40P-400X8 and CAC40P-450X6) and the World American WA911-14-5426 boot kit with 4-inch hoses and clamps.

The Flex part number encodes the size: the number after "CAC40-" or "CAC40P-" is the inside diameter (300 = 3 in., 400 = 4 in., 450 = 4.5 in.) and the number after the X is the length in inches. Hot-side boots (turbo to cooler) run hotter than cold-side boots (cooler to intake), so match the side as well as the size. More Flex hose is in Flex Technologies and hump hose, and clamps are in clamps.