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SKU: MMOC-WRX-01TBK | UPC: 748354010725
Mishimoto 02-05 Subaru WRX/STI Thermostatic Oil Cooler Kit - Black
This direct-fit thermostatic oil cooler kit from Mishimoto keeps oil temperatures in check for 2002-2005 Subaru Impreza WRX and STI models. It includes a 10-row stacked-plate cooler, billet sandwich plate with thermostat, stainless steel braided lines, and custom brackets for rally-bred flat-four engines. Expect over 20°F oil temperature reduction, 0.5 quarts added capacity, and low pressure drop for sustained performance and engine protection.
Key Features
- Thermostatic Sandwich Plate: Rear-mounted billet aluminum plate with 180°F thermostat regulates flow to prevent cold starts and maintain peak oil temps in all conditions
- 10-Row Stacked-Plate Cooler: Black anodized aluminum core measures 11.02 x 4.53 x 1.5 inches overall for efficient heat dissipation and more than 20°F drop at minimal 5 PSI pressure loss
- Stainless Steel Braided Lines: Premade -10AN lines at 36-inch driver side and 42-inch passenger side lengths ensure leak-free, durable routing specific to WRX/STI chassis
- Application-Specific Brackets: Precision CNC-machined mounts bolt directly to factory locations without cutting or fabrication for straightforward install
- Added Oil Capacity: 0.5 quarts extra volume enhances lubrication and cooling during track days, rallies, or street driving
Product Notes
- Black cooler finish pairs with Mishimoto WRX/STI radiator, fan shroud, and silicone hoses for complete cooling upgrade
- All necessary hardware, fittings, and thermal tie-wraps included for complete kit
- Mishimoto Lifetime Warranty covers defects in materials and workmanship
Installation Notes
- Professional installation recommended.
- Direct bolt-on design fits GD/GG chassis codes using existing oil ports, no engine disassembly needed
- Mounts in front of radiator, verify clearance with aftermarket intercoolers
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2005 | Subaru | Impreza | WRX |
| 2004-2005 | Subaru | Impreza | WRX STI |
Why Choose Mishimoto?
- Proven track record in motorsports cooling for Subaru rally cars
- Every kit dyno-tested on actual WRX/STI vehicles for real-world results
- Aircraft-grade aluminum and TIG-welded construction built to last
Frequently Asked Questions
-
Q: Will this fit my 2004 WRX STI?
A: Yes, direct-fit for all 2002-2005 Impreza WRX and 2004-2005 WRX STI models with GD/GG chassis -
Q: What materials and finish are used?
A: Full aircraft-grade aluminum construction with powder-coated black cooler and hard-anodized black sandwich plate for corrosion resistance -
Q: What is the warranty and install time?
A: Mishimoto Lifetime Warranty included, typical DIY install takes 1-2 hours with basic tools
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure foam inserts in heavy-duty box measuring 18.5 x 11 x 7 inches
- Weight: 10.45 lbs
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