Aluminum Cool Air Intake Intercooler for BMW E82 E90 E91 E92 E93 135i 335i 335xi 22341280Introduction Intercooler exchange device used on turbocharged and supercharged internal combustion engines to improve their volumetric efficiency by increasing intake air charge density through nearly isobaric cooling, which removes the heat of compression that occurs in any gas when its pressure is raised or its unit mass per unit volume is increased. Features High Densnity Bar Plate Core Cast Aluminum End Tanks 100% Brand New Specification