N54 N55 Intercooler for E Chassis BMW 135i, 1M, 335i, 335ixDeliver consistent, reliable power run after run with the BMS N54 N55 Upgraded Intercooler The BMS N54 N55 replacement E Chassis intercooler upgrade for BMW delivers better cooling, more power to the wheels, and allows you to hold that power longer during extended runs. With a larger core and more surface area than stock, your intercooler pressure drop is reduced, and cooling dramatically improved. Resulting in peak power gains of around 10whp and