SKU: TS-0505-2004 | UPC: 9329677010312
Universal Turbosmart WG40 11PSI Middle Spring Brown/Red
The Turbosmart WG40 11PSI Middle Spring Brown/Red is a direct replacement spring for Turbosmart 40mm external wastegate actuators like Hyper-Gate 40 and Plumb-Back 40. It sets a base boost pressure of 11 PSI perfect for street and track turbocharged vehicles including Subaru WRX STI Mitsubishi Evo and Nissan GT-R. This spring ensures quick spool and consistent boost holding for dependable power delivery.
Key Features
- 11 PSI Rating: Delivers exact base pressure for mid-range boost setups allowing fine tuning with additional springs
- Brown/Red Color Coding: Matches factory markings for quick visual identification during service or rebuilds
- WG40 Actuator Compatibility: Designed specifically for Turbosmart 40mm wastegates including Gen V Hyper-Gate and Racegate models
- Australian Manufacturing: Hand-assembled in Sydney with strict quality control and dyno testing for proven reliability
- High-Tensile Construction: Spring steel build resists fatigue under extreme heat and pressure cycles
Product Notes
- Combine with inner or outer springs to achieve higher total boost pressures up to 26 PSI
- Inspect actuator diaphragm during replacement for optimal function
- Compact design ships quickly with protective packaging
Installation Notes
- Professional installation recommended.
- Remove actuator from wastegate body depressurize system then swap spring
- Included circlip tool simplifies spring retention no custom hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2021 | Subaru | Impreza WRX | STI |
| 2003-2006 | Mitsubishi | Lancer Evolution | VIII/IX |
| 2008-2016 | Mitsubishi | Lancer Evolution | X |
| 2009-2020 | Nissan | GT-R | R35 |
| Universal | – | Turbosmart WG40 Wastegate | All Models |
Why Choose Turbosmart?
- Performance leader since 1997 with products hand-crafted in Australia
- Innovative design rigorous testing and unmatched reliability
- Factory-direct manufacturing ensures every part meets high standards
Frequently Asked Questions
- Q: Does this spring fit all Turbosmart WG40 actuators?
A: Yes it installs directly in Hyper-Gate 40 Plumb-Back 40 and Racegate 40mm models from Gen 3 to Gen V - Q: What material is used for the spring?
A: High-tensile alloy steel heat-treated for maximum fatigue resistance and longevity - Q: How do I know the boost pressure?
A: 11 PSI base use boost controller for overboost color code confirms position
Shipping & Handling
- Method: UPS Ground / USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact protective box 4 x 4 x 1 inches
- Weight: 0.1 lbs
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