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the strict machining tolerances on each lobe ensure smoother valve clearance adjustments and minimize valve timing issues
Increases the rear differential's cooling capacity
Port matched drain hole
The correct replacement seal for this connection on Universal 2
GrimmSpeed Engine Bay Reservoir Cap Set BLACK - 2002-2021 Subaru WRX/STI/FXT/OBXT/LGT COBBAPTAX the strict machining tolerances onGrimmSpeed Engine Bay Reservoir Cap Set (Black), 2002 2021 Subaru WRX STI The GrimmSpeed Engine Bay Reservoir Cap Set in black replaces the factory coolant overflow, brake, clutch, and power steering reservoir caps with matched black anodized aluminum alternatives. The OEM plastic caps are mismatched and generic, the GrimmSpeed set replaces all of them with a unified color across every visible reservoir cap. DETAILS Color: Black anodized aluminum