Exhaust Valve
GS-R Model; Type R; High Performance replacement with .5mm oversize. High flow, swirl polished, stainless steel. Can use STD valve seats but must be machined for new valve size.
Exhaust Valve
GS Model or LS Model or RS Model; Nitrided stem; Standard Size; 1.1024" Head Diameter; 0.2578" Stem Diameter; 4.1730" O.A.L; 45 Degree Face Angle