Stainless-steel tubular exhaust manifold (38mm or 41mm ID) to suit Cosworth range. Beautifully finished with internals purged for ultimate flow. Choose any turbo (T3 or T4 flange) or wastegate flange (bolted or V-band). Manifold in picture is 41mm and in pulse / split order to suit divided turbo exhaust housing. When combined with the Tial wastegate, this set-up allows perfect boost control (6psi at 7500 revs on a GT30 turbo with the gate fully open). Twin-scroll arangement is £75 extra. DELIVERY is EXTRA (£40) PLEASE NOTE THAT THESE MANIFOLDS MUST BE SUPPORTED ADEQUATELY TO PREVENT CRACKING AND CANNOT SUPPORT THE WEIGHT OF THE TURBO AND WASTEGATE UN-AIDED!