The Supertech manganese bronze exhaust valve guide for Subaru EJ20/EJ25 engines is specified for a 6mm stem with an outer diameter of 11.08mm and suits those engine families. Offered for exhaust positions, the bronze material gives a wear-resistant surface to support valve alignment in repaired heads. Confirm EJ20/EJ25 variant and dimensions before installing.
Supertech Subaru EJ20/EJ25 Manganese Bronze Exhaust Valve Guide 6mm Stem OD 11.08mm