The S55 suffers heavily from heat soak. Many tuners witnessed this early on after doing multiple dyno pulls and seeing significant drops in power after each consecutive pass. Many F8X owners experienced the same loss of power on the track as the engine just could not cool off during laps. The solution is two fold: The Charge-Air-Cooler (CSF #8082/8082R) & Front Mount Heat Exchanger (CSF #8075/8075V) work together to keep the intake temps down and power up.
Fits: BMW M2 (F87), BMW M4 (F82/F83), BMW M3 (F80). Confirm fitment with us before ordering.
