Originally Posted by Slo_crx1

Even aftermarket recirc setups are tricky to get setup properly. I had to replace my stock plastic one with a TurboXS Type-H34, and it took quite a while to get the spring tension dialed in properly to make it run and idle like stock. Too stiff of a spring and you get compressor surge, too soft and it opens at higher boost pressure. If you don't have the time or know-how to deal with setting up an aftermarket piece, I highly recommend the metal Evo IX diverter valve. Just get an open element intake like stated if you really want to hear the sound.