Tial Blow Off Valve Spring (BOV)

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These Tial BOV springs are designed to work with all Tial BOV models including the BV 50mm, Alpha Q, Q and QR BOV's.
Select the BOV spring pressure rating based on your engine's vacuum reading at idle, once the engine has reached operating temperature.

Please reference Tial's BOV chart to ensure you are selecting the correct spring as the pressure ratings will vary slightly depending on the model BOV.