I’ve been pouring over the many post at one of the other Miata forums and have found no clear answers as to which radiator to get… A lot of people seem to like Koyo. There is much debate over the 37mm or 55mm option. I also read about sealing the fan shrouds to the radiator and serious corrosion issues resulting from bad a ground in conjunction to running an all aluminum radiator… I am curious as to what people on this forum use with their FFS kits and what their experiences are?

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