Turbosmart TS-0620-3143 IWG75 Internal Wastegate Actuator Borg Warner EFR B2 Twin Port 14PSI

The Turbosmart IWG75 Internal Wastegate Actuator provides maximum boost response for Borg Warner EFR turbochargers through an increased working ratio over factory equipment. This is a direct bolt-on replacement for the Borg Warner EFR B2 Single and Twin Scroll turbocharger series, featuring a 160mm rod with 14psi base pressure (7psi middle and 7psi outer springs installed).

The Twin Port design uses air-pressure differential between two sealed chambers to create dynamic force, allowing for much more precise boost curves and a wider boost range between minimum and maximum boost than conventional single-port actuators. Peak boost is achieved earlier in the RPM range and held longer into higher RPM, improving overall turbo response and power delivery.

Key Features:

• Proprietary silicone diaphragm with Nomex reinforcement for high-temperature resistance
• High-grade billet aluminum construction for superior strength and durability
• Stainless steel rods and connecting clevis for corrosion resistance
• Turbosmart unique locking collar system for quick spring changes
• Compatible with spring options ranging from 3 to 26 psi base pressure
• Twin port control for advanced boost management strategies
• Includes fitting hardware and pre-installed springs

Turbosmart products are designed and manufactured in Sydney, Australia, with innovative design, strict quality control, and rigorous testing. Each actuator is precision-engineered to deliver improved boost response, flatter boost curves in the top end, and stable boost control throughout the RPM range.