I haven't had much luck locating these items. These are the one piece 'bat wing' style used with the OMC 4.3 liter V6 engines and Cobra drives in 1989.<br /><br />Replacement with the same would be easiest, if available.<br /><br />Alternatively, converting to a newer 2 piece style with a separate manifold and riser might be wise. Less concern about future availability for one thing and the 2 piece arrangement permits full closed system cooling, where the current ones don't.<br /><br />Anyone have recent success acquiring these?<br /><br />What additional plumbing do I need to reach the 'Y' exhaust pipe with a center rise style manifold and riser?<br /><br />Actual experiences and related comments are welcome.<br /><br />Thanks<br /><br />Bob