It needs a bov valve. If my auto set-up with a s-trim bent a couple fins on my compressor wheel because the cheap Bosch bov that came with my kit quit working.....this car has to need one....

I've heard the same about free ballin too

i still laugh at that thing... those came stock on like a 150hp turbo volvo in the 80's and they decide to include it with a blower that will make over 600hp.

Mustang SOLD!!!!!!!!