What is a turbo blow off valve
When you take your foot off the accelerator the car will not be burning
fuel or consuming air so to avoid high pressure build up in the system
the BOV releases the air either back into the unpressurised part of the
intake near the filter or into the atmosphere. Most aftermarket BOVs
vent externally and make a noise as they release the pressure.
We will take an indepth look at turbos and see what the best way of tuning
them is.