TA Technix Stainless Steel Turbo Manifold Opel 2.0l - 8V with C20 NE/C20 ZE engines - turbo conversions with T25 flange connection connection dimension at flange: 73 x 40mm incl. manifold gaskets and mounting kit Adapter Y-pipe suitable for: Opel Ascona C Opel Astra F Opel Calibra A Opel Frontera A Opel Kadett E Opel Omega A Opel Vectra A