Description
The Mishimoto 2008+ Subaru WRX STI Oil Cooler Kit (MMOC-STI-08TBK) is a direct-fit, 19-row bar-and-plate oil cooler built specifically for the EJ257-powered STI, arriving in this black cooler configuration with the M20 thermostatic sandwich plate included for added oil temperature control. Designed to mount in the front bumper for maximum airflow, this Mishimoto oil cooler kit is engineered to keep oil temperatures in check on both street-driven and track-focused STIs.
Controlling fluid temperatures is critical to consistent power delivery and long-term engine health, and this Mishimoto cooler was proven to reduce oil temperatures by 20-30 degrees while maintaining minimal pressure loss. The kit retains the use of your stock liquid-to-liquid oil cooler unit, and preassembled stainless steel braided lines with -10AN fittings make installation straightforward. A 2ft section of thermal reflective wrap is included to shield the oil lines from the substantial heat generated by nearby exhaust components, rounding out this Mishimoto oil cooler kit as a complete cooling upgrade for the WRX STI platform.
Vehicle Applications
This Mishimoto oil cooler kit is a direct fit for the 2008-2014 Subaru Impreza WRX STI, including the 2011-2014 Impreza WRX STI Limited and the 2010 Impreza WRX STI Special Edition. It also fits the 2013-2014 Subaru WRX STI Base and Sport-tech trims, as well as the 2014 WRX STI Tsurugi Edition. This kit is designed for models equipped with the single scroll turbo and unequal length exhaust manifold; STI models with a twin scroll turbo and equal length exhaust manifold may not be compatible with this oil cooler kit.
Features
- 19-row bar-and-plate oil cooler core mounts in the front bumper for optimal airflow and cooling efficiency
- Application-specific direct-fit mounting brackets for hassle-free installation
- Preassembled stainless steel braided hoses with -10AN fittings, including a 3ft 6in line with 150-degree fittings and a 4ft line with 90-degree and 150-degree fittings
- 2ft of thermal reflective wrap shields oil lines from exhaust heat
- Retains use of the stock liquid-to-liquid oil cooler unit
- Includes M20 thermostatic sandwich plate and M20 stainless steel sandwich plate adapter for greater oil temperature control
- Available in black or silver cooler finish
- Proven to reduce oil temperatures by 20-30 degrees while maintaining minimal pressure loss
- Backed by the Mishimoto lifetime warranty
Specifications
- Core Type: Bar-and-Plate
- Core Row Quantity: 19
- Core Color: Black
- Finish: Anodized
- Core Height: 5.43 in
- Core Thickness: 1.97 in
- Core Width: 11 in
- Grade Type: Performance
- Inlet Fitting Type: AN Flare, Male
- Outlet Fitting Type: AN Flare, Male
- Engine Code: EJ257
- Chassis Codes: GR, GV
- Recommended torque for straight fittings and banjo bolts: 15-25 lb-ft (do not exceed 35 lb-ft)
Frequently Asked Questions
What vehicles does this Mishimoto oil cooler kit fit?
It’s a direct fit for the 2008-2014 Subaru Impreza WRX STI, 2011-2014 Impreza WRX STI Limited, 2010 Impreza WRX STI Special Edition, 2013-2014 WRX STI Base and Sport-tech, and the 2014 WRX STI Tsurugi Edition.
Will this kit work with any STI turbo setup?
This oil cooler kit is intended for models with the single scroll turbo and unequal length exhaust manifold; STI models with a twin scroll turbo and equal length exhaust manifold may not be compatible.
How much does it reduce oil temperature?
Mishimoto states this cooler is proven to reduce oil temperatures by 20-30 degrees while maintaining minimal pressure loss.
What’s included in the kit?
The kit includes application-specific mounting brackets, the 19-row oil cooler, stainless steel braided hoses with -10AN fittings, an M20 thermostatic sandwich plate, an M20 stainless steel sandwich plate adapter, M20 x -10AN straight fittings, 2ft of thermal reflective wrap, and a mounting hardware set.
Does this kit retain the factory oil cooler?
Yes, this oil cooler kit retains the use of your stock liquid-to-liquid oil cooler unit.
What warranty is included?
This kit includes the Mishimoto lifetime warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
