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GT4202R units also
Surface finish: Choice of polished / brushed
448048-0004
15 GREY + GOLD 0
Tial 50MM BOV Mount Adapter, BMW 335i GT4202R units alsoBlow off valve mounting adapter. Mounts (1) Tial 50mm BOV in original location on BMW 335i pre throttle body chargepipe (boost pressure pipe). Custom machined to have OEM fit onto stock chargepipe. Replaces the stock plastic black bypass valve. Atmospheric vent for blow off valve sound and holds boost more reliably than stock valve (stock chargepipe has (2) of these so we recommend replacing both valves, so order 2 units. Also since you are using this
