Nah, pretty sure it's supposed to do that & the stock
BOV goes quiet if I have any leaks, I just want to get the Blitz set up so it holds boost for a bit longer + it has 4 different boost levels so I can set it at whatever I want IE 10psi... for when my daughter borrows it because her WRX is so slow, 16 for around town, 18 for a bit of fun & 21 for Kwinana to get into the 12's with a virtually stock car which I've spent about $300 on mods & still get 600K's to a tank