Providing perfect OEM fitment, reliability, and maintaining factory emission controls on all EVO8s and 9s, Wilson employs the same custom-ported intake techniques as used on several record-setting EVOs, including the Wilson Manifolds’ 2006 EVO IX. On the two fully ported race versions, the mid- and top-end horsepower gains are exceptionally strong. Compared to stock, the rpm of the street version are substantially increased.
These new kits, which fit the EVO engine type 4G63, accommodate the stock or modified stock throttle bodies as well as Wilson’s latest D-shaped fuel rails, which include stands and fittings to secure stock fuel lines. Wilson also provides an adaptor to accept their 65mm high-flow throttle body (#471065).