For E46 S54 M3 – GSC P-D (STD) Bronze Intake OR Exhaust Valve Guide – Set of 12.
Standard sized sold as set of 12
2 sets needed for complete engine
Total Length (in/mm): 1.890/48.01
Outer Diameter (in/mm): 0.4744/12.05
Valve Stem Diameter (mm): 6