Just installed the Forge BOV along with the ECP enabled tune from Trifecta. After building boost and letting off the throttle, I hear a fluttering through the air box instead of wooosh or a pssssht like you'd expect from a BOV. I suspect the BOV is not opening and the pressure of going back against the turbo (hence the fluttering). Any ideas why?
Do I need to install the yellow spring? No instructions came with the unit.
Do I need to install the yellow spring? No instructions came with the unit.