The AVO oil cooler kit for the Subaru BRZ, Scion FR-S, and Toyota GT86 is a highly engineered solution to your cooling needs. Designed for maximum efficiency and reliability, it's been tested thoroughly at the track in the toughest of conditions. Careful thought and engineering went into not just the oil cooler itself, but the placement of it to maximize the cooling efficiency. An air duct is included that routes the air from the front grill opening to ensure air flow at speed. The duct is designed to work with the AVO turbocharger kit piping as well! We use a thermostatic plate designed to activate at 85~90 degrees Celcius (185° F ~ 190° F), this is to ensure proper oil temperatures during winter conditions. Once installed at the track, we saw constant oil temperatures exactly matching the water temperature even with extensive lapping.