HKS Oil Cooler uses special size core designed for each car by considering about engine performance, engine sizes and body shapes. The HKS oil cooler uses special core that is excellent for cooling purpose, this oil cooler has thermostat to prevent overcool (except for some models).  This thermostat is very good at responding to temperature change and also acts as relief valve.  When engine oil gets hotter than thermostat temperature setting (70C  3C), it will run into oil cooler core and be cooled down.  When engine oil is cooler than above temperature, it will bypass the core and keep oil temperature in best condition.By acting thermostat as relief valve, HKS considered safety in an emergency.  In the case of extraordinary high oil pressure caused by squashed core or blocked line, etc..., thermostat acts as a relief valve and engine oil bypasses core.  By this way engine will be protected and line breakage will be prevented.

HKS oil cooler kit - Mitsubishi Evo 7 £569.42	HKS oil cooler kit - Mitsubishi Evo 8 £569.42
HKS OIL COOLER KIT Mitsubishi Evo 4 (IV) £523.76	HKS OIL COOLER KIT Mitsubishi Evo 5 (V) £554.11
HKS OIL COOLER KIT Mitsubishi Evo 6 (VI) £554.11	HKS OIL COOLER KIT Subaru Impreza GC8 £549.10
HKS OIL COOLER KIT Subaru Impreza GDA/GDB 02/11> £615.18	HKS OIL COOLER KIT Subaru Impreza GDB 00/10~02/10 £695.71
HKS OIL COOLER KIT Toyota Supra JZA70 £720.67	HKS OIL COOLER KIT Toyota Supra JZA80 £619.10