GFB DVX Diverter Valve w/ Volume Control - Audi S3 2015-2020 / Volkswagen Golf R 2015+ Tial When we say “bolt-on”

When we say “bolt-on”

Increases horsepower and torque while prolonging performance

Stage 2 software yielded greater than 25 Horsepower with the addition of the IE intake

All of these things come together to make The GrimmSpeed 15-21 WRX Header not only the prettiest on the market

GFB DVX Diverter Valve w/ Volume Control - Audi S3 2015-2020 / Volkswagen Golf R 2015+ Tial When we say “bolt-on”GFBs DVX takes the extremely popular DV+ Diverter Valve and adds dual venting outlets along with our patented Venting Bias Adjustment System. So not only do you get IMPROVED BOOST HOLDING and THROTTLE RESPONSE, you have total control over your BLOW OFF SOUND VOLUME! WHAT MAKES DVX DIFFERENT TO ANY OTHER VALVE THAT GOES WHOOSH? The DVX is not just a noise maker (like BOV spacers) by modifying the valve operation method it offers the same PERFORMANCE