WGA 7304 Wastegate Actuator for WRX Applications
WGA 7304 Wastegate Actuator for WRX Applications
WGA 7304 Wastegate Actuator for WRX Applications
Photo for reference only

    WGA 7304 Wastegate Actuator for WRX Applications

    SKU: GFB-7304

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    $244.90 -100%
    $244.90
    WGA 7304 Wastegate Actuator for WRX Applications
    $244.90
    $244.90
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    Product Description

    Vehicle Applications

    WGA 7304 Wastegate Actuator for WRX Applications also suits:

    • SUBARU WRX MY99-00
    • SUBARU WRX MY03-05 (aka "peanut eye")
    • SUBARU WRX MY01-02 (aka "bugeye")
    • SUBARU WRX MY01-02 (aka "bugeye")
    • SUBARU WRX MY06-07 (aka "hawkeye")
     
    Specific Product Information:
     
    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.

    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.

    THE WGA IS A HIGH-PERFORMANCE INTERNAL WASTEGATE ACTUATOR DESIGNED TO IMPROVE BOOST CONTROL ON TURBO SYSTEMS WITH AN INTERNAL WASTEGATE.

    When diving into the world of increasing your car’s boost pressure, the limits of a factory-fitted wastegate actuator can soon become apparent. Even with electronic boost control it is not always possible to overcome wastegate issues such as boost drop off at high RPM, unstable boost curve, or an inability to achieve target boost.
    Upgrading to a GFB WGA ensures you get the best possible performance and response from your turbocharger!

    WGA BENEFITS

    (COMPARED TO A FACTORY-FITTED ACTUATOR):

    • Faster spool up
    • Less boost taper at high RPM
    • More stable boost control
    • Customizable spring rates
    • Supports higher boost pressure

    It’s what we like to do here at GFB – maximize performance and minimize size.
    Here’s how we did it with the WGA:

    • Industry-first diaphragm design - the WGA’s Nomex-reinforced silicone diaphragm is designed to achieve the largest effective diaphragm area with the smallest possible outside diameter. This gives the WGA more control  authority over the wastegate flap, resulting in better boost control. It’s a bit like being the turbo’s puppet-master, rather than its puppet!
    • No unnecessary bulk sounds obvious, but attention to detail in the design means the WGA is the shortest actuator on the market.
    • Longest stroke – with 18mm of rod travel, the WGA is suitable for controlling the largest of internal wastegates, or the extra travel can be used to further increase boost pressure without having to change springs.
    • Unique pivoting rod guide – machined from PEEK (an extremely high-performance engineering polymer), the encapsulated spherical rod guide takes up significantly less height in the actuator body than other designs, whilst offering low friction and superior wear resistance.

    MORE ADJUSTABLE, MORE EASILY.

    Setting the base spring pressure correctly for your application can have significant performance benefits, so we made sure the WGA offers the best adjustability on the market!

    We supply 3 stainless steel springs that can be used in any combination ranging from 5psi to 22psi, but that’s only the beginning. Whilst other brands may offer more spring options (sold separately), changing springs to fine-tune boost pressure is time consuming and quite frankly, a pain in the butt.

    That’s why we added another industry-first: turnbuckle adjustment. Because the WGA was designed with a long stroke, it is possible to use some of that extra stroke length to fine-tune the base boost pressure in a matter of minutes without swapping
    springs or removing the actuator.

    As an added benefit, the turnbuckle makes swapping springs so easy that it can often be done without removing the actuator from the car!

    Please Note: Turbo / Wastegate picture is for reference only. Turbo not included and product may vary.


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