Forge Motorsport Uprated Actuator for EVO 4/5/6/7/8
The Forge Motorsport Uprated Actuator is a high-quality replacement component designed to enhance the performance of your EVO 4/5/6/7/8. It is built with a serviceable and guaranteed for life design, featuring an uprated diaphragm and a billet CNC machined aluminium mounting bracket.
This product is equipped with a predetermined actuator spring suitable for factory boost levels or slightly above. If desired, a stiffer spring can be assembled upon request. Please note that the compatibility and ability to increase boost output beyond the engine-management-system parameters of your vehicle cannot be guaranteed.
Forge Motorsport and its authorised distributors cannot be held responsible for any adverse effects resulting from the installation and tuning of this product on a vehicle that is not capable of allowing for the desired level of adjustment. It is important to ensure that your vehicle’s engine and related systems can support and withstand the stresses of elevated boost pressure.
For those seeking a durable and corrosion-resistant option, Forge Motorsport now offers the choice of stainless steel bodies and external components/fixings for their piston design actuators. This option incurs a surcharge.
The default selection for this actuator product is diaphragm sealed internals. However, Forge Motorsport now also offers the option of piston sealed internals, which provide equal performance and low maintenance due to their hard-wearing nature.
Fitting of this part is available at our performance workshop at Progressive Parts. For more information or any inquiries, please feel free to contact us.



