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The GFB WGA bolt-on internal wastegate actuator for Mitsubishi Evo 9 replaces the factory unit with a larger diaphragm and 18mm rod travel to improve boost control and response. It features a Silicone/Nomex diaphragm, a PEEK pivoting rod guide for low friction, and three stainless springs that combine to offer 5–22 psi base spring settings. Turnbuckle adjustment lets you tune base boost quickly without removing the actuator.
GFB Mitsubishi EVO 9 Internal Wastegate Actuator
