Standard size. 30.1mm intake, 28.5mm exhaust.
BMW F32 440i B58 3.0L Cylinder Head Exhaust Valves
Valve located on the exhaust side of the engine
This product was last offered at the strikethrough price on
04-06-2026
High performance valve springs. 75lb @ 37mm, 155lb @ 10mm
B58B30 Applications Only
Two required per valve, necessary for use with certain supertech valves
This product was last offered at the strikethrough price on
08-13-2026
Two required per valve, necessary for use with certain supertech valves
Oversize. 30.6mm intake, 29mm exhaust.