Stay chilled this winter thanks to Forge Motorsport. The latest PolarCooler radiator (FMCCRAD6) for the F80 M3 and M4 is destined to keep auxiliary component cooling under control.

It can be used as a standalone upgrade, or in conjunction with Forge Motorsport’s charge cooler upgrade (FMCC1), to really feel the benefits of a 545mmx460mmx32mm core with both improved surface and core volume.

This modification is particularly useful when pursuing stage 1 and above ECU remaps as more boost pressure inevitably leads to more heat.

For those who seek 500+hp from an F80 M3 / M4, the supporting Forge cooling modifications make an awful lot of sense.

Price £719

For more info see Forge Motorsport