Mishimoto [15-21 WRX STI] Oil Cooler Kit - Black

The Mishimoto Oil Cooler Kit for the 2015-2021 Subaru WRX STI controls fluid temperatures to ensure consistent power and engine longevity on street or track-driven vehicles. A large 19-row cooler mounts in the front bumper to provide optimal airflow and cooling efficiency.

• Direct fit for the 2015-2021 Subaru WRX STI
• 19-row oil cooler; proven to reduce oil temperatures by 20+°F (16+°C) while maintaining minimal pressure loss
• Increase in oil capacity: 0.65 quarts
• Direct-fit mounting brackets and preassembled stainless steel lines with -10AN fittings
• Thermal reflective wrap for the oil lines provides heat deflection from the nearby exhaust
• Retains the use of the stock liquid-to-liquid oil cooler unit
• Stealth Black cooler with Oil Sandwich Plate
• Part number: MMOC-STI-15BK
• Mishimoto Lifetime Warranty

Q&A

Does this fit my 2015-2021 Subaru WRX STI?
Yes. This Mishimoto oil cooler kit is a direct fit for the 2015-2021 Subaru WRX STI and retains the use of the stock liquid-to-liquid oil cooler unit.

What is included in the box?
The kit includes application-specific mounting brackets, a 19-row oil cooler, a 3.5-ft stainless steel braided hose with 150-degree -10AN fittings, a 4-ft stainless steel braided hose with 90 and 150-degree -10AN fittings, an M20 sandwich plate, an M20 stainless steel sandwich plate adapter, M20 x -10AN straight fittings, and a mounting hardware set. It is covered by the Mishimoto Lifetime Warranty.

How difficult is installation?
The included direct-fit mounting brackets and preassembled stainless steel lines with -10AN fittings ensure an easy and hassle-free installation. Recommended torque for all straight fittings and banjo bolts is 15-25 lb-ft; do not exceed 35 ft-lb.