well theres a large varitey of BOV that are good, theres...
1.Greddy type S
2.Hks SSQ
3.Turbo XS type S
and
4 Blitz R2D2
my recomendation...
HKS or Greddy. Esspecily for your boxer turbo, your enjoy it.
as for the turbo timer, the HKS is the most used, but a turbo timer from Blitz or Greddy is just as good but bigger, the HKs is small and compact witch makes it a good for mouintg in different places.
hope i helped :thumb: