The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines
*General use blow off valve for custom big turbo applications - Not a direct fit valve*
The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines
*General use blow off valve for custom big turbo applications - Not a direct fit valve*
Recirculation & blow off valve all in one for customers that want both styles
Replace your faulty diverter valve with this 6061 Billet Aluminium BOV!
Made to mount on top of hard boost pipe. Side vacuum port.
34mm weld on dual piston atmospheric blow off valve for custom installs
Made to mount on top of hard boost pipe
Increase throttle response and DV/BOV performance with this IPCV.
Made to mount on top of hard boost pipe. Vacuum port on top.
Creates a aggressive BOV sound. Only fits HKS BOV
Creates a "Whoosh" noise instead of a whistle. Simple install on all HKS BOV's
Converts factory diverter valve into a blow-off valve
Add a touch of audial excitement without compromising your daily comfort
This product was last offered at the strikethrough price on
09-29-2026
Full replacement kit for es1832445
Used to seal the valve to the new adapter flange
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
Replaces the failure-prone factory diaphragm for rock-solid boost control