Turbosmart IWG75 Internal Wastegate Actuator Mitsubishi Evo 4/5/6/7/8(CN9A/CP9A/CT9A)

Turbosmart IWG75 Internal Wastegate Actuator - Mitsubishi Evo 4/5/6/7/8 (CN9A/CP9A/CT9A)

Turbosmart is one of Australia's most respected names in forced induction components, and their IWG75 series actuators are a direct answer to the limitations of factory wastegate hardware. Designed to work with your existing turbocharger rather than replace it, the IWG75 delivers a broader boost curve, earlier peak boost onset, and improved boost holding at higher RPM — all from a bolt-on upgrade.

This listing covers the Turbosmart IWG75 Internal Wastegate Actuator for the Mitsubishi Lancer Evolution 4, 5, 6, 7, and 8 (CN9A, CP9A, CT9A), fitted with the factory TD05H turbocharger. Five spring pressure options are available — from 10 psi through to 26 psi — selectable via the variant selector on this page.

Important: The 14 psi variant is a direct replacement for the factory actuator and requires no ECU changes. All other spring pressure options will require tuning and ECU recalibration before use.

Key Features

• Bolt-on fitment for the factory TD05H turbocharger on the 4G63-powered Evo 4–8
• Increased diaphragm surface area for improved working ratio over factory
• Proprietary silicone Nomex diaphragm for durability under sustained boost
• High grade billet aluminium construction
• Stainless steel rods and clevis
• Turbosmart unique locking collar system
• Available in 10 psi (0.68 bar), 14 psi (1.00 bar), 18 psi (1.24 bar), 22 psi (1.51 bar), and 26 psi (1.79 bar) spring ratings
• Broader boost and torque curve with earlier peak boost and improved top-end holding

Fitment compatibility, chassis notes, and configuration details are provided in the tabs above. Please confirm your vehicle's year, variant, and turbocharger configuration before ordering.

Not sure if this actuator suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.