The manifold is manufactured from aluminised mild-steel. Sportex are now making these manifolds on state of the art CNC bending machines so you can be sure of a perfect fit! Ideal for'Fast-road' or club-competition. Escort performance exhausts have come a long way since the 70's! We also sell single, twin-box systems, and full race/rally exhausts for the Escort Mk1 & 2.