ErnGotti's 08 EvoX

if its open at idle the car will run like shit…

put a stiff enough spring in it so its closed at idle and all is well :slight_smile:

i’ve got a TiAL Q 50mm BOV and the maf is still on the car and all is well, partial throttle is a bit finicky… i have the 11psi spring in it fwiw…