The HKS GT Wastegate is engineered for high-horsepower and high-boost applications. It has the ability to support engines producing 600 to well-over 1000 horsepower. The GT Wastegate is able to control high-boost applications because of its precision machined 60mm stainless steel valve and heavy-duty diaphragm. The GT Wastegate also features the ability to adjust its base boost level by changing the tension on the wastegate spring.