Team,

Ive looked and looked and although it seems like a basic question, cant find a DECISIVE answer. Regarding boost/vacuum ports on the S4 Turbo manifold, which ports on the front and back of the manifold are full vacuum and boost. Im aware of the full range port on the side of the manifold facing the passenger strut tower, but am trying to limit this to only the factory ecu pressure sensor and the fcon pressure sensor. The manifold Im working with has 4 ports on the fire wall side, 3 on the front. Is it just the bottom port on the front and rear of the manifolds that are full range?