You chose to have an atmo BOV so you pay the price.
Most guys here are DIY freaks (including myself). DIY makes you appreciatte your Skyline owning exprience so much more. Built...not bought.
Bet you think twice now that you've spent nearly $500 (EID $160, BOV $150, Install $100) just to get a loud pssht sound. can get a FMIC these days for that price.