GFB WGA Internal Wastegate Actuator Subaru WRX (GC8/GDB) / Forester XT (SF/SG) TD04

GFB WGA Internal Wastegate Actuator Subaru WRX 97-07/Forester XT 97-08 (TD04)

GFB built the WGA to solve the boost control problems that plague factory internal wastegate actuators once you start pushing for more power. Fitted to your Subaru WRX or Forester, the WGA's Nomex reinforced diaphragm and long stroke design give you far greater control over the wastegate flap than the factory unit, meaning faster spool, less boost taper up top, and a more stable curve overall. SKU 7304.

This listing covers the GFB WGA for Subaru WRX models from 1997 to 2000 (GC8) and 2001 to 2007 (GDA/GDB), plus Subaru Forester GT (1997 to 2002, SF) and Forester XT (2003 to 2008, SG), all fitted with the factory TD04 turbocharger.

Important: This is a bolt-on actuator, but it will raise boost pressure above factory levels, so a professional retune is required once fitted.

Key Features

• Nomex-reinforced silicone diaphragm for maximum control authority in a compact housing
• 18mm of rod travel — the longest stroke on the market for internal wastegate actuators
• PEEK pivoting rod guide for low friction and long term wear resistance
• Turnbuckle adjustment for fine-tuning base boost without swapping springs
• Three stainless steel springs supplied, adjustable from approximately 34 to 152 kPa (5-22 psi)
• 5 psi and 7 psi springs fitted from factory for a base pressure of around 83 kPa (12 psi), with the 10 psi spring included for further tuning

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your turbo type and model year before ordering.

Not sure if this actuator suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.