Get rid of the factory cross-over type intake manifold with the Greddy RB25DET intake manifold. Leaning towards either painting the manifold black. More parts are coming in! Just got my Greddy style RB intake manifold as well as some seals and gaskets. This intake manifold will improve mid to high RPM range power. Greddy Intake Manifold is a must have for people running high boost. GReddy Intake Manifold Plenum R33 RB 25 DET. How much did you pay for the intake manifold. After installing the greddy style intake I will install a proper FMIC but I have.
