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Forge Motorsport Adjustable Actuator FMAC3SUB for Subaru Forester
Forge Motorsport Adjustable Actuator FMAC3SUB for Subaru Forester
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Forge Motorsport Adjustable Actuator FMAC3SUB for Subaru Forester

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  • Adjustable Actuator for Subaru IHI VF24 Turbo.
  • Forge Motorsport were one of the first companys in the world to design and manufacture the billet two-piece replacement aluminium turbo actuator. Originally for the Cosworth, Renault 5 GT turbo, and Lancia Integral turbos, we soon developed the largest and most diverse range of actuator replacements.
  • Choice of spring pressures to suit your car
  • Manufactured from 6026 grade aluminium
  • Vehicle specific
  • Turbo specific
  • Built to order
  • Machined and hand polished in the UK
  • Choice of piston or diaphragm operation on most actuators
  • Nomex reinforced flurosilicone diaphragms
  • Laser cut stainless steel brackets (where applicable)
  • Tuning and service kits available
  • Made in England
  • Lifetime warranty*
  • Please Note:
  • The pressure figures listed in the drop-down menu above are minimum regulated pressure figures. If you are unsure, please don't hesitate to call us on 01452 380999.
  • When you fit a Forge turbo actuator you will be able to fine tune and manage your specific boost requirements, this will allow for improved response and better control. This product is built with a predetermined actuator spring suitable for, or slightly above factory boost levels. The actuator can be assembled with a stronger spring upon request for tuned vehicles, and where a higher boost level is required. Please contact us directly concerning this process. It is designed and built with the intention of increasing the boost output of a turbocharged system. We cannot guarantee compatibility with all applications, nor the ability to increase the boost output beyond a level that is within the parameters set by the engine-management-system of the given vehicle at the time of installation, whether that system is factory or aftermarket
  • Diaphragm sealed internals are the default selection for this actuator product but customers now have the option of piston sealed internals. Unique to Forge Motorsport, this innovation offers equal performance to the diaphragm type and low maintenance due to the hard wearing nature of piston sealed valve internals.
  • Forge Motorsport nor any of its authorised distributors can assume any responsibility for any adverse effects resulting from the installation and tuning of this product onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of allowing for the desired level of adjustment. While Forge Motorsport is happy to supply you with an actuator capable of holding boost beyond that of your factory unit we are in no way capable of knowing nor suggesting that your vehicle's engine or related systems are capable of supporting or surviving the stresses of such elevated boost pressure.
  • In The Box:
  • 1 x FMAC3SUBActuator
  • 1 x Forge Sticker
  • This actuator is built with a stock spring as standard. If you require the FMPACTUN spring tuning kit seen in the associated products below, you will need to select the Diaphragm Type 2, 049 option.
Price £198.00 inc. VAT
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Seen it cheaper? We'll Beat/Match Prices
Make Subaru
Model Forester
Manufacturer FORGE MOTORSPORT
Manufacturer Part FMAC3SUB
Larkspeed Code FMAC3SUB
Product Information
Delivery & Returns
  • Adjustable Actuator for Subaru IHI VF24 Turbo.
  • Forge Motorsport were one of the first companys in the world to design and manufacture the billet two-piece replacement aluminium turbo actuator. Originally for the Cosworth, Renault 5 GT turbo, and Lancia Integral turbos, we soon developed the largest and most diverse range of actuator replacements.
  • Choice of spring pressures to suit your car
  • Manufactured from 6026 grade aluminium
  • Vehicle specific
  • Turbo specific
  • Built to order
  • Machined and hand polished in the UK
  • Choice of piston or diaphragm operation on most actuators
  • Nomex reinforced flurosilicone diaphragms
  • Laser cut stainless steel brackets (where applicable)
  • Tuning and service kits available
  • Made in England
  • Lifetime warranty*
  • Please Note:
  • The pressure figures listed in the drop-down menu above are minimum regulated pressure figures. If you are unsure, please don't hesitate to call us on 01452 380999.
  • When you fit a Forge turbo actuator you will be able to fine tune and manage your specific boost requirements, this will allow for improved response and better control. This product is built with a predetermined actuator spring suitable for, or slightly above factory boost levels. The actuator can be assembled with a stronger spring upon request for tuned vehicles, and where a higher boost level is required. Please contact us directly concerning this process. It is designed and built with the intention of increasing the boost output of a turbocharged system. We cannot guarantee compatibility with all applications, nor the ability to increase the boost output beyond a level that is within the parameters set by the engine-management-system of the given vehicle at the time of installation, whether that system is factory or aftermarket
  • Diaphragm sealed internals are the default selection for this actuator product but customers now have the option of piston sealed internals. Unique to Forge Motorsport, this innovation offers equal performance to the diaphragm type and low maintenance due to the hard wearing nature of piston sealed valve internals.
  • Forge Motorsport nor any of its authorised distributors can assume any responsibility for any adverse effects resulting from the installation and tuning of this product onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of allowing for the desired level of adjustment. While Forge Motorsport is happy to supply you with an actuator capable of holding boost beyond that of your factory unit we are in no way capable of knowing nor suggesting that your vehicle's engine or related systems are capable of supporting or surviving the stresses of such elevated boost pressure.
  • In The Box:
  • 1 x FMAC3SUBActuator
  • 1 x Forge Sticker
  • This actuator is built with a stock spring as standard. If you require the FMPACTUN spring tuning kit seen in the associated products below, you will need to select the Diaphragm Type 2, 049 option.

SPECIAL OFFER - FREE SHIPPING on this item to all UK Mainland Addresses (Excludes Highlands, Islands and Northern Ireland.

This Alloy Adjustable Actuator has been designed by Forge to replace your original component. This Forge uprated actuator is serviceable and guaranteed for life. It is built with a predetermined actuator spring suitable for at or slightly above factory boost levels. The actuator can be assembled with a stiffer spring upon request. Please contact us directly concerning this process.

Please Note: While Forge are happy to supply an actuator capable of holding boost beyond that of your factory unit, they are in no way capable of knowing nor suggesting that your vehicle's engine or related systems are capable of supporting or surviving the stresses of such elevated boost pressure.

The easiest way to order from Larkspeed is via our secure online ordering system. We accept most major credit and debit cards except American Express. We also accept PayPal.

Please ensure that you provide us with a valid telephone number and email address so that we can contact you about your order if necessary. Please also ensure that you fill in your vehicle details so that we know what car you are ordering for.

Once an order has been placed successfully, you will receive an automated response via email. If you do not receive an automated email from our website, this could mean that your payment has not been successful – in if doubt, please contact us on sales@larkspeed.com or 0113 264 3231


Location Weight Price
UK Mainland Up to 2kg £5.95
UK Mainland Over 2kg £10

Mainland UK shipping does not cover Highlands and Islands and selected postal areas. The Postal Code areas listed below will in some cases incur extra postage charges.

AB31-38, AB40-56, All BT Postal Codes, All HS Postal Codes, All IM Postal Codes, IV1-28, IV30-32, IV36, IV40-49, IV51-56, IV63, KA27-28, KW1-17, PA20-38, PA41-49, PH4-44, PH49-50, All ZE Postal Codes, All Channel Islands and all Republic of Ireland addresses

For shipments up to 30kg

Location Price
Highlands/Islands/Selected Postal Areas £20
Andorra £55
Austria £45
Belgium £40
Channel Islands £35
Croatia £55
Czech Republic £55
Denmark £55
Estonia £55
Finland £55
France £40
Germany £50
Greece £55
Hungary £55
Ireland £30
Isle of Man £30
Italy £55
Latvia £55
Netherlands £50
Northern Ireland £30
Norway £75
Poland £70
Slovakia (Slovak Republic) £55
Slovenia £55
Spain £55
Sweden £45
Switzerland £65

Telephone Ordering

If you prefer, you can also order via telephone on 0113 264 3231

For customers outside of the UK, please dial +44 113 264 3231

Email Ordering

Customers outside of the UK can email orders to sales@larkspeed.com. When payment is required, we can email you a secure card payment link or a PayPal invoice.

Worldwide Shipping

We can ship virtually every item on our website to almost every part of the world. However, the website can not calculate shipping for all countries, particularly where we need to ship via Air (generally outside of Europe). If the website is not calculating shipping automatically for you, then please email us for a shipping quote on sales@larkspeed.com

Deducting VAT

Please note that we can remove the VAT for all customers outside of the EU, and also for customers within the EU with a valid EU VAT Number.

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