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The Supertech manganese bronze intake valve guide for Toyota FR‑S and Subaru BRZ FA20D engines is sized for a 5.5mm stem to restore accurate valve positioning and consistent sealing. Offered as a direct-fit guide for routine rebuilds, it supports correct valvetrain geometry and controlled oil clearance in FA20D intake applications.
Supertech Toyota FRS / Subaru BRZ FA20D Manganese Bronze Intake Valve Guide 5.5mm Stem
