• Unleash Maximum Boost: The Turbosmart IWG75 Wastegate Actuator is engineered to deliver the best boost response for your factory frame turbocharger, enhancing performance across all RPMs. • Enhanced Working Ratio: Thanks to an increased diaphragm surface area and spring revisions, it offers greater leverage against boost and backpressure, all while remaining super - responsive. • Broader Power Curve: Upgrade to get an earlier and longer - lasting peak boost, resulting in a wider boost and torque curve. Higher base pressures can further amplify these benefits. Features: • Proprietary Silicon Nomex Diaphragm • Optional Springs from 3psi to 26psi • High - Grade Billet Aluminum Construction • Stainless Steel Rods and Clevis • Turbosmart Unique Locking Collar System Notes: The 14 psi version directly replaces the factory item. Other versions need engine ECU tuning/calibration.

This Turbosmart IWG75 Wastegate Actuator is a must - have for Mitsubishi EVO 4 - 8 owners looking to boost their car's performance. Whether you're a daily driver wanting a bit more power or a racing enthusiast seeking every edge, this actuator is perfect. It works with your factory frame turbocharger to give a better boost response. You don't need to worry about complicated tech specs; just know that it has high - grade billet aluminum construction and comes with optional springs. However, if you choose a version other than 14 psi, you'll need to tune your engine's ECU.