This HKS S-Type oil cooler kit is specifically designed for 2015 - 2021 Subaru STI models. It's engineered to mount neatly inside the passenger fender. Under both normal and high - performance driving, it effectively lowers oil temperatures. This temperature reduction is crucial as it safeguards the engine from damage and extends its lifespan. Crafted from top - quality materials, it offers outstanding durability. All brackets, lines, and installation hardware are custom - fit for your vehicle. It slightly boosts the overall oil capacity. With an estimated installation time of 6 hours and requiring 5.5L of oil, it features a 48mm (1.89 - inch) thick oil cooler. The kit comes with an air duct that channels cold air through the oil cooler core. After that, the air exits via vents in the wheel arch. Even with this kit installed in the fender area, you can keep your fog lights in place. Note: Installation involves modifying the mud guard, under cover, front bumper, air cleaner, horn bracket, and exhaust manifold heat insulator.
Using this HKS S - Type oil cooler kit is a great way to protect your 2015 - 2021 Subaru STI's engine. When installing, remember it takes about 6 hours and you'll need 5.5L of oil. Also, you'll have to make some modifications to parts like the mud guard and front bumper. Once installed, it will work automatically to lower the oil temperature during driving. To keep it in good shape, check the oil level regularly and make sure the air duct is clear of any blockages. If you notice any signs of leakage or if the oil temperature doesn't seem to be dropping as it should, it's a good idea to have it inspected by a professional.
