Ford Escort MK1 OHC 2.25 RS2000 4 Branch Exhaust Manifold Sportex Competition. This is a the Race/Rally 3-piece version with bigger diameter header pipes. (Also known as the Group 2 manifold, for those of you who’s memories go back that far). For this 4-branch manifold to be suitable, the Escort also needs to be fitted with an exhaust system with a 2.25 bore. Fits systems that run down the standard left side of the car, or the Full Spec. The manifold is manufactured from aluminised mild-steel. The primary pipes are 1.75 o/d. The secondary pipes have a 2″ outside diameter and the outlet pipe has a 2.25″ o/d. Sportex are now making these manifolds on state of the art CNC bending machines; so you can be sure of a perfect fit! … However, this system will NOT fit in conjunction with the original brake servo.. The vehicle must be fitted with a Bias Pedal box, and a’World Cup’ type competition front cross-member. THE IMAGE SHOWS THE ACTUAL FORD ESCORT RS2000’GROUP 2′ MANIFOLD. Ideal for competition and’Track-day’. 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.