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Mishimoto Oil Cooler Kit (Silver) - Subaru WRX ('08-14)

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Part Description:

The Subaru WRX 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 WRX STI Oil Cooler Kit is a great addition to any street or track STI. A large 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 cooler is proven to reduce oil temperatures by 20+°F (16+°C) degrees while maintaining minimal pressure loss. For further heat protection this kit includes thermal reflective wrap for the oil lines providing substantial heat deflection from the nearby exhaust. The Mishimoto Subaru WRX STI Oil Cooler Kit can be customized to meet your needs with either a Stealth Black or Sleek Silver cooler and your choice of the Mishimoto Oil Sandwich Plate or the Mishimoto Thermostatic Oil Sandwich Plate. As with all our products this kit includes the Mishimoto Lifetime Warranty.


  • 20+°F (16+°C) temperature drop
  • Minimal pressure loss
  • Direct fit for the STI
  • Stealth Black and Sleek Silver cooler options
  • Thermostatic option available
  • Mishimoto Lifetime Warranty


Increase in Oil Capacity
.65 Quarts (0.615L)
Pressure Drop
3-4 PSI
Engine codes
Chassis Codes
Temperature Difference
20+°F (16+°C)
Purchase Includes
(3) - Application Specific Mounting Brackets
(1) - 19-Row Oil Cooler (silver or black)
(1) - 3ft 6in Stainless Steel Braided Hose with 150-degree -10AN Fittings
(1) - 4ft Stainless Steel Braided Hose with 90-degree and 150-degree -10AN Fittings
(1) - M20 Thermostatic Sandwich Plate (Non-Thermostatic Available)
(1) - M20 Stainless Steel Sandwich Plate Adapter
(2) - M20 x -10AN Straight Fittings
(1) - 2ft of thermal reflective wrap
(1) - Mounting Hardware Set
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. 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.
For STI Installation
Refer to final picture for proper STI hose routing as this differs from the WRX.
It is the installer's responsibility to check all thermostat plugs NPT plugs line fittings and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals especially during the first few miles after installation.


Click here to download the Installation Guide PDF.

Package Details:

48cm (18.8")
39cm (15.5")
22cm (8.5")
Actual Weight
4.89kg (10lb 12oz)
Dimensional Weight
8.10kg (Air Freight Minimum)

All weights/dimensions have been checked and confirmed by our warehouse team. This part is eligible for international express air freight shipping.

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