Our aluminum housing is designed to overcome two key flaws of the OEM plastic thermostat. The plastic tabs of the OEM thermostat are prone to breaking, causing the thermostat to fail closed, which can result in engine overheating and significant damage. Our 6061-T6 aluminum housing completely removes those tabs, significantly reducing the risk of thermostat failure. Additionally, aluminum can naturally withstand high temperature heat cycles for longer periods than plastic, making our thermostat more durable and reliable.

Our thermostat is designed to open at 85C, just like the OEM thermostat, ensuring optimal engine performance. For those seeking a "racing thermostat," our assembly seamlessly accommodates the Mishimoto racing thermostat.

Our product is 100% re-buildable, making it easy to replace lower temperature "racing" thermostats without sacrificing the benefits of the aluminum housing.

Investing in our Audi 3.0T Thermostat saves you money on recurring maintenance costs. With our product, you won't need to replace a broken thermostat housing again.

Due to our confidence in this product, we are happy to offer a 3-year warranty. This product has been 100% tested in-house on our own S4 with exceptional results.

This kit comes with a fully assembled aluminum thermostat housing which includes the housing, thermostat, O-rings, and a cross-over coolant pipe bolt.

Audi 3.0T Gen 1 Supercharged TFSI Engines