DINAN HIGH PERFORMANCE HEAT EXCHANGER - 2015-2020 BMW M2/M3/M4

Heat is the enemy of performance. Keep temps down and performance will go up as a result of increased efficiency. It's really as simple as that. In stock trim, testing made it painfully obvious that cooling was going to hold an even more vital role on the F8x (S55) platform to achieve maximum results. The stock cooling system heat soaks after only 3 pulls and allows the engine air intake temperatures (IAT) to rise dangerously. The ECU must then reduce engine power to prevent detonation. With the Dinan high-performance heat exchanger the vehicle does not heat soak even after 7 pulls; more than twice the effectiveness of a stock setup! Some may ask why change the heat exchanger and not the intercooler itself? Wouldn't it be more beneficial to go directly to the source of the charge air? The simple answer is yes, but at a cost. The stock system cools the intake charge by using a water-to-air intercooler, an expensive piece to engineer. The cooling circuit for the water that feeds the inte