Style 148 Radiator Gauge Cap; 1.3 Bar (15-21 WRX STI)Find parts that fit my vehicle

P2M high pressure (1.3 bar / 18.85psi) radiator cap facilitate your engine's coolant operation. Higher pressure helps to reduce air pocket build up in the cooling system and also raise cooling system boiling temperature. Comes with temp gauge for ease of monitoring your engine's coolant temperate on the spot. High performance cap seal to ensure durability over the conventional rubber.

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