Hi All,

I recently bought a 2000 WRX with an aftermarket EJ208 converted to a single VF35 turbo and a Takashi FMIC... My question is, why can't I find a BOV anywhere on the intake/aftercooler circuit? The car whoosh's when I change gears or when backing of from high revs (backing off when high revs in neutral when trying to find where sound is coming from). Will I still get whooshing if there is no BOV fitted? Could it be pressure going back through the turbo?

Cheers Megsy