Curious on what BOV everyone uses (turbo/supercharger) and why you chose that one over others.
I'm currently in the market to purchase a quieter BOV. The Tial Q BOV sounds badass and all, but it's fairly loud for a supercharger build, especially driving on the freeway.
Only found a couple Tial QRJ BOV videos. Was going to purchase that one, but figured I'd get opinions first.

 

Synapse sychronic bov

 

I have a brand new Silver QRJ with 5 different fittings that I was going to use on my Supercharge build. I'm now turbo charging and don't need it.
I've also got the flange for it to be welded to any aftercooler ie Vortech, SOS, etc...

 

IMO Tial is the best. If you don't like the sound of the Q, try the recirculating bov from tial

 

QRJ is the biggest recirculating Tial bov.

 

I would use the smallest valve that keeps the turbo from surging.

 

The biggest you can find for a supercharger. To avoid surging

Tial is what I use.

 

Turbosmart dual port. I have it recirculated into the air filter on my HKS kit and it sounds perfect. I have never suffered any flutter or issues with it dumping the air. If you decide you don't want to recirculate the hot compressed air you can simply remove the plug and add the trumpet fitting to it so it vents to atmosphere.

I opted for the 34mm version

 

Kompact dual port 25mm on my SC, setup to air to atmosphere.

 

Both Turbosmart and Tial are good pieces. We've ran them both at very high boost and power levels without failures.