Adjustable actuator for Subaru with Turbo TD04/TD05.
Forge Motorsport were among the first manufacturers in the world to design two-piece aluminum turbo actuators. Originally for Cosworth, Renault 5 GT Turbo and Lancia Integral Turbo, they quickly developed a huge range.

• Choice of spring strength
• Made with 6026 aluminum
• Specifically designed for this vehicle
• Specifically designed for this turbo
• Made to order
• Handcrafted and polished in the UK
• Reinforced fluorosilicone diaphragms
• Laser cut stainless steel mounting brackets (if required)
• Adjustment and maintenance kit available
• Made in England
• Lifetime warranty*.

Please note: The pressure levels listed in the drop-down list above are the minimum values for turbo pressure regulation.

When you install a Forge turbo wastegate, you can make a complete and accurate adjustment and manage your specific turbo pressure needs, this product offers better turbo response and control. It is manufactured with a stock spring that is suitable for pressures slightly higher than factory turbo pressures. This actuator can be modified with a stiffer spring upon request, for prepared vehicles where higher turbo pressures are required. Please contact us directly for these matters.
It has been designed and built for the purpose of increasing turbo pressure. We cannot guarantee compatibility with all models, nor can we guarantee the ability to increase turbo pressure above the level defined by the vehicle's engine programming at the time of installation, whether it is original or modified programming!

The diaphragm configuration is the default, but now customers have the option to order the piston configuration. Unique to Forge Motorsport, this innovation offers similar performance to the diaphragm, as well as less maintenance due to the strength of the piston. Forge and its distributors assume no responsibility for damage caused by the installation or adjustment of this product on a car whose programming, whether stock or modified, does not allow an additional level of adjustment.

Box Contents:

• 1 x FMAC4SUB actuator
• 1 x Forge sticker

This wastegate is assembled with a standard spring. If you wish to order the FMPACTUN spring kit as well, you must select the Type 2 diaphragm, option 049.