Genuine Subaru STI High Pressure Radiator Cap

Opening valve pressure changed from 1.1 Bar (standard) to 1.3 Bar.

This product prevents overflow caused by the thermal expansion of coolant water even under severe conditions such as sports driving and track work.

Vehicle Fitment:

• Subaru Impreza (All)
• Subaru WRX (All)
• Subaru STI (All)
• Subaru Forester (All)
• Subaru Liberty (All)
• Subaru Outback (All)

Please Note: This does not suit Subaru BRZ/Toyota 86

Superseded from ST4511355010