Turbosmart IWG75 Twin Port Wastegate Actuator
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Turbosmart IWG75 Twin Port Wastegate Actuator - Subaru WRX STI Spec C (GDB) - 7psi
The Turbosmart IWG75 is an upgraded internal wastegate actuator for the VF36 and VF37 turbochargers fitted to the Subaru WRX STI Spec C (GDB). A larger effective diaphragm area and revised springs give it a higher working ratio than the factory actuator, so peak boost arrives earlier in the rev range and is held for longer, giving a broader boost and torque curve. This is the twin port version, which adds a second pressure chamber for a wider boost control window.
Note: Suits the VF36 and VF37 turbochargers fitted to the 2002-2006 GDB WRX STI Spec C only - please confirm your turbo before ordering. Running a higher base spring pressure than factory is likely to require ECU tuning and recalibration. Installation by a professional is recommended.
What's Included
- IWG75 wastegate actuator
- Vehicle-specific mounting bracket
- Spring pre-fitted to the listed pressure
- Fasteners and swivel hose barb
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | WRX STI Spec C | GDB | EJ207 2.0L Turbo (VF36/VF37) |
Technical Specifications
| Spec | Value |
|---|---|
| Brand | Turbosmart |
| Series | IWG75 Twin Port |
| Diaphragm | Silicone Nomex |
| Construction | Billet aluminium |
| Rod and clevis | Stainless steel |
| Spring adjustment | Turbosmart locking collar |
| Optional spring range | 3 - 26psi |
| Turbo | VF36 / VF37 |
| Spring pressure | 7psi |
| Part number | TS-0605-4073 |

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