BARR CM-20-6674 Chrysler 6" Riser Fully jacketed exhaust riser 6” riser protection Direct replacement for Chrysler part 2846689 Suitable for Chrysler 1966 and newer V8 273, 318, 340 and 360cu Joins to CM-1-6677A and CM-1-6672A manifolds BARR risers include plugs, gaskets and mounting hardware to mount to manifold