Yesterday I ordered a new BPV and this will be the 4th one I will have on my air to air setup. I am going to try the new TIAL QRJ.
So far I have had on:
Stillen Bosch (plastic garb)
Turbosmart Kompact (1" inlet and outlet are too small causing judder on high psi)
Vortech Maxflow Race (bought a used one, thought it had a problem, bought a new one, same problem, loud whistling noise from 1200 to 2000 rpm, it sucks)
Tial QRJ (hopefully awesome)
