this maybe true, how ever im sure there would be quite a few exhaust shops willing to make up a manifold to suit. weather it be a datsun or otherwise. should nearly be cheaper to make than extractors. then if your worried about heat, wrap them or have the manifold ceramic coated.


also thanks for the info, i really had no idea what these would have originally come from. i was taking a stab in the dark really :P but they seem to be in great condition