GSC P-D Porsche 944 Turbo Manganese Bronze STD Style Intake Valve Guide - Single - 3084

GSC P-D Honda K20/K24 VTEC Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single - 3054.003-1

GSC P-D Subaru EJ20/EJ25 SOHC Manganese Bronze Intake/Exhaust Valve Guide - Set of 8 - 3067-8

GSC P-D BMW M3 E46 S54 Manganese Bronze Intake/Exhaust Valve Guide +.003in Oversize OD - Single - 3096.003-1

GSC P-D Toyota 2JZ Manganese Bronze Intake Valve Guide Stopper Style - Single - 3142