Available now in silver and black, this Q based BOV comes in two different sizes, a 1.0" outlet common for most cars with a Bosch style bov, and a 1.34" outlet for Evo/DSM. Users can also switch this unit to a Q atmospheric bov by simply purchasing the bottom half of the Q BOV, all other parts are the same!

Spring pressures are the same for the QR and Q, so you will use the Q BOV spring pressure chart to make your selection.

Outlet port size must be specified at time of order.