Mishimoto MMOC-STI-15TBK Oil Cooler Kit for 2015-2021 Subaru WRX STI with Thermostatic Plate

The Mishimoto MMOC-STI-15TBK thermostatic oil cooler kit is engineered to provide superior engine oil temperature management for 2015-2021 Subaru WRX STI models. This direct-fit kit delivers a temperature reduction of over 20°F (16°C) compared to stock, helping to maintain optimal oil viscosity and protect your turbocharged engine during aggressive driving conditions.

Key Features:

• Direct bolt-on fit for 2015-2021 Subaru WRX STI models with no modifications required
• Thermostatic sandwich plate maintains proper oil temperature during warm-up and cold weather operation
• Retains the factory liquid-to-liquid oil cooler for dual cooling system benefits
• Sleek black finish for a stealthy appearance in the engine bay
• Easily replaceable thermostat allows customization of activation temperature
• Optional thermostats available in 160°F, 185°F, and 200°F to suit different climates and driving styles
• Engineered for minimal pressure loss to maintain proper oil flow throughout the system
• Backed by Mishimoto Lifetime Warranty for peace of mind

This complete kit includes everything needed for installation, including the oil cooler core, thermostatic sandwich plate, pre-assembled stainless steel braided lines, and all necessary mounting hardware. The thermostatic plate ensures oil flows through the cooler only when it reaches operating temperature, preventing over-cooling during daily driving while providing maximum cooling performance during track days or spirited driving sessions.