7300 WGA Wastegate Actuator – Lancer Ralliart

Part No: 7300

US$ 221.54

Part No: 7300 Categories: ,


The WGA is a high-performance internal wastegate actuator designed to improve boost control on internally wastegated turbos. By using a significantly larger diaphragm area than the OEM actuator, the WGA has more control authority over the wastegate flap, meaning exhaust backpressure cannot override the flap position as easily, resulting in more stable and reliable boost control.


Supplied with 3 springs and a unique turnbuckle pre-load adjustment, the base boost pressure can be configured and adjusted from 5psi to 24psi for the best possible boost control.

The WGA features a longer stroke, shorter height, and more adjustment than its rivals.


WGA part # 7300 is designed to bolt on to Mitsubishi Lancer Ralliart models with the factory turbo. The 5psi and 7psi springs are installed for a base pressure of 12psi, with the 10psi spring included in the packaging for additional tuning options.

Read on for more technical information on wastegate springs, and how the correct spring selection can improve performance.

Please note that whilst this is a physical “bolt-on” product, it should be considered a tuning tool as it WILL increase boost pressure and therefore TUNING IS REQUIRED.

When it comes to external wastegates, some things you want big, others you want small – like big flow, small size, right? GFB offers a range that are among the most compact external wastegates in their class, being shorter in height than their closest rivals without sacrificing flow.

All GFB wastegates feature an investment cast body made from 253MA chromium-nickel stainless steel, a CNC machined billet stainless valve, and all stainless steel weld-on fittings and hardware, whilst the diaphragm is nomex-reinforced silicone. All this adds up to a wastegate built to handle extreme conditions with reliability you can trust!

  • Most compact wastegate range on the market!
  • Body, valve, seat and all mounting hardware is CNC machined from high-temp stainless steel
  • Actuator housing CNC machined from billet 6061 aluminium
  • Nomex-reinforced silicone diaphragm
  • Internal shroud protects valve stem from excessive heat and prevents carbon-related sticking
  • V-band clamp mounting system
  • Made in Australia under ISO 9001

Additional information

Weight 0.7 kg
Dimensions 16 × 16 × 9 cm

7300 WGA Wastegate Actuator - Lancer Ralliart also suits:

  • MITSUBISHI Lancer Ralliart 4B11T 08-on WGA Internal Wastegate Actuator for Mitsubishi Lancer Ralliart