James Gasket Top End Gasket Kit 4″ Evo/Big Twin 17033-92-4

KIBBLEWHITE Exhaust Valve TRX450R 31mm 30-30954Black Diamond valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Mad