Mishimoto oil coolers are engineered for direct fit and provide reliable, high-performance solutions to keep your engine running at its best. Their oil coolers are crafted with efficient tube-and-fin designs and high-quality aluminum construction to effectively lower oil temperatures, preventing overheating and improving engine longevity.
Fitment Information
- Subaru WRX 2.5L (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Subaru WRX STi 2.5L (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
Note
- WRX STi (2008-2019): This oil cooler kit will only work with models with the single-scroll turbo and unequal-length exhaust manifold. Models with a twin-scroll turbo and equal-length exhaust manifold may not be compatible with this oil cooler kit.
- WRX (2015-2019): This will not fit on Mishimoto 2015+ WRX Front-Mount Intercooler Kit
Specs & Features
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Proven drop in oil temperature:
- +25°F (+13.9°C) – WRX 2008-2014
- +20°F (+11°C) – WRX 2015-2021
- +20°F (+16°C) – WRX STi 2008-2021
- Full bolt-on oil cooling solution for street and track vehicles
- No modification necessary for installation, functions with all stock equipment
- 19-row oil cooler strategically mounted in the lower grille for maximum airflow
- CNC-machined application-specific sandwich plate
- Works in conjunction with stock liquid-to-liquid heat exchanger for proper fluid warm-up and regulation
- Includes preassembled stainless steel braided oil lines with -10AN fittings
- Cooler available in Sleek Silver or Stealth Black
- Increases oil capacity by 0.75 qt
- This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
- Mishimoto Lifetime Warranty
- A perfect complement to the Mishimoto Subaru WRX Performance Aluminum Radiator
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Install Torque Specs
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Recommended torque specification for all straight fittings and banjo bolts: 15-25 ft/lbs (operating range). Do not exceed the maximum torque rating of 35 ft/lbs.
Product Description
The Subaru WRX and STI are built for rally-inspired performance, high-revving excitement, and turbocharged power, but when you’re pushing the limits, oil temperatures can skyrocket, robbing your engine of performance and reliability. Whether you’re carving up backroads, setting personal bests on the track, or daily driving in extreme conditions, the Mishimoto Performance Oil Cooler Kit is the ultimate upgrade to keep your 2008-2021 Subaru WRX and STI running cool, efficient, and ready for anything.
Engineered for maximum cooling efficiency, this kit features a high-capacity stacked-plate oil cooler, designed to provide optimal heat dissipation while maintaining ideal oil pressure. Tested in real-world conditions, it delivers a significant reduction in oil temperatures, ensuring better engine protection, improved longevity, and consistent performance under spirited driving or track abuse. Unlike restrictive factory systems, the Mishimoto oil cooler is positioned strategically to maximize airflow without compromising durability, making it the perfect solution for WRX and STI owners who demand more from their turbocharged boxer engine.
Each kit includes high-quality stainless-steel braided oil lines and a thermostatic or non-thermostatic sandwich plate, giving you full control over your oil temperature management. Designed as a direct-fit application for 2008-2021 WRX and STI models, installation is straightforward with no modifications required. Plus, with Mishimoto’s signature Lifetime Warranty, you can drive with total confidence, knowing your Subaru is protected from oil overheating and performance loss.
