This AussieSpeed Holden V8 Tunnel Ram manifold includes 1 interchangeable top.
THE TUNNEL RAM BASE IS 150mm high from the top to the bottom of the manifold sitting flat on a bench plus the top.This height does not include the removable top section
1×4 barrel AS0061
2×2 barrel AS0063
2×4 barrel AS0063
You are buying an AS0050 Tunnel Ram that includes 4 mounting bolts, 2 gaskets and an AS0062 twin 4 barrel top.