Brian Crower 6mm Exhaust Valve Guides WRX 2002-2014 /STI 2004-2017 Subaru Turbo Models
BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. BC guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's.
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