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Part No: 7304

WGA 7304 Wastegate Actuator for WRX Applications

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Warning

GFB recommends that only a qualified automotive technician fit this product.


Adjustment and/or tuning is required when installing this product, as it will result in higher boost pressure which could damage your engine if the ECU is not tuned to suit. GFB makes no recommendations regarding “safe” boost levels for your engine. This product is a tuning tool and maximum boost pressure should be determined by an expert, taking into account the capabilities and limitation of your specific engine and supporting modifications.


This product is intended for racing use only, and it is the owner's responsibility to be aware of the legalities of fitting this product in his or her state/territory regarding noise, emissions and vehicle modifications.


GFB products are engineered for best performance, however incorrect use or modification of factory systems may cause damage to or reduce the longevity of the engine/drive-train components.

Instructions

Specific Product Information

What's Included

  • 1 x actuator
  • 1 x rod with nuts
  • 1 x clevis
  • 1 x bracket
  • 1 x 5psi spring (pre-installed)
  • 1 x 7psi spring (pre-installed)
  • 1 x 10psi spring

 

7304 Specific Features

  • WGA part # 7304 is designed to bolt on to Subaru WRX models from MY97-07 with the factory TD04 turbo. The 5psi and 7psi springs are installed for a base pressure of 12psi, and the 10psi spring is included in the packaging for further tuning options.*

*Please note that whilst this is a physical “bolt-on” product, it should be considered a tuning tool as it WILL increase boost pressure and therefore TUNING IS REQUIRED.

 

Product Range Information

Features and Benefits

  • The WGA is a high performance internal wastegate actuator designed to improve boost control on internally wastegated turbos. By using a significantly larger diaphragm area than the OEM actuator, the WGA has more control authority over the wastegate flap, meaning exhaust backpressure cannot override the flap position as easily, resulting in more stable and reliable boost control.*
  • Supplied with 3 springs and a unique turnbuckle pre-load adjustment, the base boost pressure can be configured and adjusted from 5psi to 24psi for the best possible boost control.
  • The WGA features a longer stroke, shorter height, and more adjustment than its rivals.

*Please note that whilst this is a physical “bolt-on” product, it should be considered a tuning tool as it WILL increase boost pressure and therefore TUNING IS REQUIRED.

 

 

Self-troubleshooting Steps

 

After installing your wastegate, I’ve found that I’m making 0 boost. What is happening.

  • In most cases, it’s worth noting that it is almost impossible for a wastegate to be making 0 boost. A wastegate “seemingly” making 0 boost is not an indication that it is stuck open. In most cases, we’ve found that if you’re making 0psi worth of boost – your vehicle may be in some form of limp mode due to a possible CEL code. We would recommend using an OBD2 scanner to check for all CEL codes to see if there is an underlying code causing this limp mode to be triggered.

 

FAQ

 

How do I choose what springs to use?

Read our article here: https://gfb.com.au/tech/tech-articles/how-to-choose-wastegate-springs/ 

Tech Support and Warranty

Warranty Information

We offer lifetime warranty on all of our products, so provided that there is a genuine manufacturing or assembly fault with your product – please send us some photos of what’s going on so that we’d be able to assist with either replacement parts or components. It’s also worth noting that we our lifetime warranty does not extend to those who have purchased our parts second hand.


Contact Us: https://gfb.com.au/contact-us/

If you are still having some trouble, then the next steps are to contact our Tech Support team. Videos, photos and a clear description of the symptoms you are experiencing would give us a better understanding of what is going on and how to resolve this issue as quickly as possible. Remember, we can’t see your car or product, so our diagnosis is only as good as the information you provide us.

Downloads & Installation

Vehicle Applications

  • SUBARU IMPREZA WRX MY06-07 (aka "hawkeye")
  • SUBARU IMPREZA WRX MY01-02 (aka "bugeye")
  • SUBARU IMPREZA WRX MY03-05 (aka "peanut eye")
  • SUBARU IMPREZA WRX MY01-02 (aka "bugeye")
  • SUBARU IMPREZA WRX MY99-00