Mishimoto 08-14 WRX/STi Thermostatic Oil Cooler Kit - Silver

Mishimoto is well-known for making solid cooling components, and this thermostatic oil cooler kit is a prime example for your 2008-2014 Subaru Impreza WRX STI. Keeping your engine oil at a consistent, manageable temperature is crucial for both consistent power delivery and the long-term health of your engine, especially when you're pushing your STI on the street or the track.

This kit features a large 19-row oil cooler that's designed to mount in the front bumper area, where it can get the best airflow. Mishimoto includes direct-fit mounting brackets and pre-assembled stainless steel lines with -10AN fittings, which makes installation pretty straightforward. You'll see a notable drop in oil temperatures, typically between 20 and 30 degrees Fahrenheit, without a significant loss in oil pressure. To further protect the lines from heat radiating off nearby exhaust components, the kit also comes with thermal reflective wrap.

What sets this kit apart is the inclusion of a thermostatic sandwich plate. This plate helps the engine warm up faster by bypassing the cooler until the oil reaches a specific temperature, and then it opens up to allow cooling. This is a smart addition for cars that see a mix of driving conditions. This particular kit comes with a silver cooler, and like all Mishimoto products, it's backed by their lifetime warranty.