• Experience Maximum Boost Response: Turbosmart's IWG75 upgraded wastegate actuators are engineered to offer the ultimate boost response for your factory frame turbocharger. • Broader Boost & Torque Curve: With the same base pressure as factory, achieve peak boost earlier in the RPM and hold it longer into higher RPM, resulting in a broader boost and torque curve. • Premium Construction: Features a proprietary silicon nomex diaphragm, high - grade billet aluminum construction, stainless steel rods and clevis, and Turbosmart's unique locking collar system. Upgrade your turbocharger today and feel the difference! The Turbosmart IWG75 Series of upgraded actuators has an increased 'Working Ratio' over factory equipment, thanks to an increase in the effective surface area of the diaphragm and spring revisions. This allows for greater leverage against boost and backpressure while remaining super - responsive. Higher base pressures can amplify these improvements, though tuning and recalibration may be required. You can also choose springs from 3psi to 26psi (Optional).

The Turbosmart IWG75 Black wastegate actuators are perfect for car enthusiasts and professional racers looking to enhance the performance of their WRX STI GDB Spec C with EJ207 VF36 or VF37 turbochargers. In high - performance driving scenarios like track racing or spirited street driving, these actuators can significantly improve the vehicle's power delivery. They are made with high - grade billet aluminum, ensuring durability. The unique design includes a proprietary silicon nomex diaphragm and stainless steel rods. While exact dimensions and weight aren't provided, you can expect a well - built, reliable product that offers a wide range of spring options to suit your needs.