Mishimoto Thermostatic Oil Cooler Kit Black 2015-2021 STI

Special Price $580.95 Regular Price $673.46

The Subaru STI provides a great balance of power, handling, and reliability. As with any vehicle, controlling fluid temperatures will ensure consistent power and engine longevity. The Mishimoto Subaru STI Oil Cooler Kit was developed specifically for the 2015 STI and is a great addition to any street or track-driven vehicle. A large Mishimoto 19-row cooler mounts in the front bumper to provide optimal airflow and cooling efficiency. The included direct-fit mounting brackets and preassembled stainless steel lines with -10AN fittings will ensure an easy and hassle-free installation. This Mishimoto cooler is proven to reduce oil temperatures by 20+°F (16+°C) while maintaining minimal pressure loss. For further heat protection, this Mishimoto Subaru Oil Cooler Kit includes thermal reflective wrap for the oil lines, providing substantial heat deflection from the nearby exhaust. The Mishimoto Subaru STI Oil Cooler Kit can be customized to meet your needs with either a Sleek Silver or Stealth Black cooler and your choice of the Mishimoto Oil Sandwich Plate or the Thermostatic Oil Sandwich Plate. As with all our products, this kit includes the Mishimoto Lifetime Warranty.

Recommended torque specification for all straight fittings and banjo bolts: 1525 ft-lb (operating range). Do not exceed the maximum torque rating of 35 ft-lb.
This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit

This oil cooler kit will only work with models with the single scroll turbo and un-equal length exhaust manifold. Models with a twin scroll turbo and equal length exhaust manifold may not be compatible with this oil cooler kit.

The Mishimoto Thermostatic Oil Sandwich Plate is a lightweight, high-flow sandwich plate built from 6061 aluminum. The built-in thermostat prevents oil flow to the cooler until the engine oil reaches activating temperature, allowing for both a faster warmup at startup and extra oil system protection in cold climates. The included 185°F (85°C) thermostat can be changed with a 160°F (71°C) or 200°F (93°C) unit, adding unparalleled control over your desired engine oil operating temperature. Also includes a 1/8" NPT threaded hole on the side for oil sensors.

Increase In Oil capacity
0.65 qt (0.615 L)
Temperture Difference
20+°F (16+°C)
Pressure Drop
34 psi
Purchase Includes:
2x Application-Specific Mounting Brackets
1x 19-Row Oil Cooler (Silver or Black)
1x 3.5' Stainless Steel Braided Hose with 150° -10AN Fittings
1x 4' Stainless Steel Braided Hose with 90° and 150° -10AN Fittings
1x M20 Sandwich Plate (Thermostatic Available)
1x M20 Stainless Steel Sandwich Plate Adapter
2x M20 x -10AN Straight Fittings
1x Mounting Hardware Set

20+°F (16+°C) temperature drop
Minimal pressure loss
Direct fit for the 2015+ STI
This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
Sleek Silver or Stealth Black cooler options
Thermostatic option available
Mishimoto Lifetime Warranty

2015-2021 STI

More Information
Color Black
Manufacturer Mishimoto
Price 673.46
Sales Price 580.95
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