S&S 55mm CNC Ported Manifold for Milwaukee-8 OEM Throttle Body

S&S 55mm manifold for stock throttle body on Milwaukee-8 engines. This is a great upgrade for the stock H-D plastic/composite manifold and offers increased performance. This CNC Version takes it to the next level. Porting is performed using a 5-Axis CNC machining center for the ultimate in consistent shape and flow characteristics.