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FORGE ADJUSTABLE KO4 ACTUATOR FMACVAG06 fits Audi TT-S, S3, GOLF MK5 MK6

Product Description


A replacement turbo actuator for vehicles based on the MK5 Golf chassis with the 2.0 FSi engine.This product 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 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.

In The Box:
1 x FMACVAG06 Actuator
1 x Forge Sticker

  • 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*