Thermostatic Oil Cooler Kit Mishimoto for Subaru WRX STI / 08+ / Silver
Available Options:
Silver or black, without thermostat
Silver or black, with thermostat
Category: Oil Cooler Kits and Accessories
Engine Codes: EJ257
Chassis No: GR GV
Pressure Drop: 0.20-0.27 bar
Attention:
It is the responsibility of the installer to check all plugs, fittings, clamps, and all other connections to ensure they are properly tightened before putting the vehicle into operation. Mishimoto recommends that you check all connections at regular intervals, especially during the first few kilometers after installation.
Increase in Oil Capacity: 0.615L
Temperature Difference: 16+°C
Note:
This oil cooler kit is only compatible with models featuring a single-scroll turbo and unequal-length headers. Models with a twin-scroll turbo and equal-length headers are likely not compatible with this oil cooler kit.
Torque Recommendation for Installation:
20-33 N*m is recommended for all straight fittings and eyelets. Do not exceed the maximum range of 47 N*m.
Purchase Includes:
(3) - Application-specific mounting brackets
(1) - 19-row oil cooler (silver or black)
(1) - 1.06m stainless steel wrapped hose with 150° -10AN fittings
(1) - 1.2m stainless steel wrapped hose with 90° and 150° -10AN fittings
(1) - M20 sandwich plate with thermostat (also available without thermostat)
(1) - M20 stainless steel sandwich plate adapter
(2) - M20 x -10AN straight fittings
(1) - 0.60m heat protection tape
(1) - Mounting hardware set
The Subaru WRX STI offers a perfect blend of performance, handling, and reliability. Like any vehicle, monitoring fluid temperatures ensures sustained performance and engine lifespan. The Mishimoto Subaru WRX STI oil cooler kit is a great addition for any street or race track STI. The large 19-row cooler is mounted in the front bumper for optimal airflow and cooling efficiency. The included direct-fit mounting brackets and pre-assembled stainless-steel lines with -10AN fittings ensure an easy and hassle-free installation. This cooler has been proven to reduce oil temperature by 16°C with minimal pressure drop.
For additional heat protection, this kit includes heat protection tape for the oil lines, which provides significant heat shielding from the nearby header. The Mishimoto Subaru WRX STI oil cooler kit can be selected based on personal preference with either a black or silver cooler and an optional sandwich plate with or without a thermostat.

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