just fitted my fmic and apexi avcr on my 94 sti.problem is my turbo on boost sounds like a whinning still boosts fine and no smoke etc. im only running low boost to about 10 psi.could the sound be because the turbo is geetin denser air from the fmic or is it on its way out? cheers chris

 

I think it is to do with the extra pipeing now for the FMIC.

 

Yep.
Don't worry, just enjoy the car.
Everything sounds different with a FMIC on
Graham

 

cheers guys.