High Rated Race Performance 2.0 Bar Stainless Steel Radiator Pressure Cap – Car & Bike This 2.0 bar (29.75 psi) high-rated race performance radiator pressure cap is designed for demanding applications where increased cooling system pressure is required. Manufactured in the UK from durable stainless steel, this cap helps raise the coolant boiling point, improving cooling efficiency under extreme operating conditions such as motorsport, track use, or tuned performance vehicles. Important: This is a high-pressure cap. Always confirm your radiator, hoses, and cooling system are designed to safely operate at 2.0 bar. Incorrect pressure ratings may cause component failure or damage. Returns: 30-day returns accepted. Buyer pays return postage unless otherwise stated. Message us if you need hel.