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CTS Turbo S55 Heat Exchanger Upgrade for F8X M2C/M3/M4

CTS Turbo


The factory front mounted heat exchanger is small and not efficient enough to provide enough cooling to tuned S55 engines. CTS designed their heat exchanger to overcome that problem. Double-pass core was made to be higher flowing and larger than factory but still drop into the stock location. CNC machined mounting points and hose connections allow for a seamless install without any need to cut or trim any factory parts.

CTS also included a handy vent to allow you to easily bleed any air out of the cooling system after the installation.

Keep your S55 running cool and reliably with a CTS Turbo Front Mount Heat Exchanger!


  • CNC machined mounting points and hose connection for factory fitment
  • Drop-in design
  • High efficiency double-pass aluminum core
  • Hand-welded and pressure tested
  • Lowers intake air temperature

Vehicle Fitment:

  • F80 M3 2014+
  • F82/F83 M4 2015+
  • F87 M2 Competition 2018+

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