The HKS oil cooler kits are designed to increase the all important cooling of your vehicleÕs lubrication system, when driven hard the cars own systems can often have trouble keeping up with the high demands placed upon it, the HKS system utilizes a sandwich plate attachment on the ÒSÓ type kits and a filter relocation attachment on the ÒRÓ type kits, these are vehicle specific and contain the pipe-work required to place the cooling unit in the perfect place. Some kits also come complete with air ducting to force air through the radiator.