Single side draft Steinmetz angled intake manifold for the Opel GT. This special design allows you to mount a Weber DCOE single side draft carburetor (plus longer venturis and a deeper air filter), with ample clearance away from the Opel GT heater box area. An excellent upgrade that greatly improves fuel delivery on performance-built 1.9L and 2.0L Opel CIH engines! Inquire with OGTS for additional details.