What is the adjustable boost pressure range for this wastegate actuator?

This actuator comes with three stainless steel springs that can be used in any combination to achieve base spring pressures ranging from 5psi to 22psi. The turnbuckle adjustment allows for further fine-tuning within this range.

What makes this wastegate actuator different from a factory one?

Compared to a factory actuator, this GFB unit features a larger diaphragm for better control, a longer rod stroke for more adjustment, and a unique PEEK rod guide for reduced friction and wear. It also includes a convenient turnbuckle for easy boost pressure adjustments.

Does this wastegate actuator come with everything needed for installation?

This is a bolt-on kit designed to replace the factory actuator. While it includes the actuator and springs, you may need to refer to the manufacturer's instructions for any specific hardware or tools required for installation on your 2003-2005 Mitsubishi Lancer Evolution.

GFB Mitsubishi EVO4-8 Internal Wastegate Actuator

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Specifications

Brand: Go Fast Bits
Part #: 7301
UPC: 9328022007397

GFB Mitsubishi EVO4-8 Internal Wastegate Actuator

Name: GFB Mitsubishi EVO4-8 Internal Wastegate Actuator
Brand: Go Fast Bits
SKU: go-fast-bits-gfb-mitsubishi-evo4-8-internal-wastegate-actuator-t14-484369
Price: 209.25 USD
Availability: BackOrder

$209.25

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2003-2005 Mitsubishi Lancer. GFB Internal Wastegate Actuator improves turbo performance with adjustable boost control.

Key Features

Fits 2003-2005 Mitsubishi Lancer Evolution.
This kit includes the Go Fast Bits Internal Wastegate Actuator.
Features a large silicone/Nomex diaphragm with a bead retention design for improved control authority.
Offers 18mm of rod travel, suitable for controlling larger internal wastegates or increasing boost pressure.
Includes a unique pivoting rod guide made from PEEK for low friction and wear resistance.
The actuator body is designed to be the shortest on the market.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Mitsubishi Lancer 2003-2005

Product Details

This is the Go Fast Bits Internal Wastegate Actuator, a bolt-on upgrade designed to replace the factory unit on your 2003-2005 Mitsubishi Lancer Evolution. It's built to give you much better control over your turbocharger's boost pressure, helping you get more performance out of your forced induction system.

What sets this actuator apart is its diaphragm design, which uses a bead retention system to achieve a large effective area in a compact package. This means it has more authority over the wastegate flap for more precise boost control. It also offers a long stroke, up to 18mm of rod travel, which is great for controlling larger internal wastegates or for increasing boost pressure without needing to change springs. The actuator body is also notably short, making it one of the most compact on the market.

Adjusting your base boost pressure is crucial for performance, and this actuator makes it easier than ever. It comes with three stainless steel springs that can be combined to achieve pressures from 5psi to 22psi. But the real convenience comes from the turnbuckle adjustment feature. This allows you to fine-tune your base boost pressure in minutes without having to swap springs or remove the actuator, thanks to its long stroke providing a wide adjustment range.