Genuine Subaru STI "Pink" Uprated 1.3Bar Radiator Cap - ST4511355010.
This radiator cap is manufactured by the world renowned STI department of Subaru.
This radiator cap allows the cooling system to run at a higher pressure which inturn raises the boiling point which makes the cooling system more efficient.
Extract from STI description:
"Change the valve opening pressure from the standard 1.1Bar to 1.3Bar. Also to prevent the overflow due to thermal expansion of the cooling water in harsh conditions such as sports driving and circuit racing. Valve openeing pressure 1.3Bar"
As with ALL of our products, this is a GENUINE STI PRODUCT which we buy direct from Japan.
Fits all Subaru Imprezas 1993-2014.
Also fits Legacy and Forester.