Performance Oil Cooler Kit + HKS Filter for Subaru Impreza WRX/STi All EJ20/25 Engines

This cooler kit is ideal for track cars which need lots of extra cooling, road going NA cars that have been fitted with a turbo or drift cars which spend lots of time at high RPM with very little front end air flow.

Once most oil gets over 300 degrees F it begins to loose it’s lubricating properties, this causes excessive engine wear and will eventually lead to engine failure. This cooler will help to prevent this problem. This cooler does not feature a thermostat and overcooling oil can also cause problems so it is best practice to fit an oil temp gauge to be sure, the sandwich plate in this kit has 2 x 1/8″ NPT ports which allows you to fit oil temp or/and oil pressure gauges. Blanking plugs are supplied if required.

This kit does not replace the factory oil to water cooler that can be found under the filter on some Subarus.

With varying modifications to vehicles it is recommended that you have enough space to get the sandwich plate under the oil filter and the space to get the two fittings in. There are 6 fittings supplied but you will only require 4, supplying more than required just gives that extra flexibility when it comes to fitting.

The kit comes complete with a HKS oil filter to make sure you get the best filtration possible.

There is 4m of stainless steel braided hose supplied with the kit that can be cut to length, you will need a angle grinder or similar with a cutting disc to cut the hose to the desired length. If you have not fitted the aeroquip type fittings before it is probably a good idea to watch a Youtube video or two before attempting to fit them to the hose.

What to expect in the box

1 x Black 25 Row Mocal Style Cooler
4m of Stainless Braided AN10 Hose
2 x 90 degree Aeroquip Type Fittings
2 x 45 degree Aeroquip Type Fittings
2 x Straight Aeroquip Type Fittings
1 x Sandwich Plate (Colours May Vary)
2 x 1/8″ NPT Bungs
1 x HKS Oil Filter

There are many different places that an oil cooler can be mounted so we do not supply brackets to mount the cooler to the car, you will need to make these.