More information about O.S. Exhaust Header .21 RZ OSM72101270
O.S. 180 degree header for the 21 RZ engine is constructed of aluminum and has a matte silver finish. 180 degree header. This product includes one header and two manifold springs.
Length: 77.3mm (3.046")
Width of flange: 25.7mm (1.012")
Inner Engine Mount Diameter: 19.0mm (.752")
Inner Muffler Mount Diameter: 13.2mm (.521")
Spring Length: 102mm (4.015")