The GFB WGA is a premium internal wastegate actuator that provides much more precise boost control and greater stability than the standard actuator. Thanks to a larger membrane surface The wastegate can better resist exhaust backpressure, preventing the valve from opening too early. The result: more stable boost, faster response, and more reliable performance, especially with tuned engines.
The actuator offers both adjustable base boost (5–24 psi thanks to three included springs) as a turnbuckle preload adjustment for ultra-precise tuning. The compact, versatile design features a longer stroke and more adjustment range than comparable products. Specific to the EVO X, this WGA is direct bolt-on and comes pre-installed with 10 psi + 7 psi springs (17 psi base pressure).
Advantages
• Larger diaphragm for superior wastegate control
• Adjustable base boost: 5–24 psi
• Turnbuckle preload for fine adjustment
• Direct bolt-on for Mitsubishi EVO X (part no. 7303)
• Better boost stability and faster response
• Compact design with longer stroke and large adjustment range
• Ideal for both stock and tuned turbo setups
Technical specifications
• Compatible with: Internal wastegate turbos, EVO X specific bolt-on
• Base pressure (EVO X): 17 psi (10 + 7 psi springs)
• Extra spring: 5 psi
• Boost adjustment range: 5–24 psi
• Construction: premium actuator with larger diaphragm
• Adjustment: turnbuckle preload
Contents
GFB - WGA Wastegate Actuator EVO
