Car enthusiasts dealing with oil cooling systems, this Derale fluid control thermostat is seriously smart engineering! The billet aluminum construction looks awesome and provides durability for high-performance applications. Here's how it works: it bypasses your oil cooler until the oil reaches 180 degrees Fahrenheit, then the internal thermostatic valve closes and directs 100% of the oil through the cooler. This is genius because it lets your engine or transmission reach optimal operating temperature faster, which is better for efficiency and reducing wear. Once warmed up, it maintains that perfect temperature by routing oil through the cooler as needed. The 1/2-inch NPT ports are standard for most oil cooler systems, and you can actually rotate the unit 180 degrees to change the flow direction depending on your installation needs. The included universal mounting bracket offers four different mounting positions, so you can fit it in tight engine bays. This is particularly valuable in cold climates where getting up to temperature quickly matters, or for vehicles that see track use where precise temperature control is crucial. Installation is straightforward if you're comfortable with oil system work. Whether you're building a performance vehicle or just want smarter temperature management for your daily driver, this thermostat provides that professional-level control that makes a real difference in engine longevity and performance.