Another vote here for TiAL

 

Stock Evo IX BOV with a GT3076R at 28 psi.

 

Just to throw another one in the mix there is also the Turbosmart line of valves. I have the Evo specific bov set to VTA. I am running AEM, with 5bar map sensor. Fairly quite. Its a vale to get when you dont want to draw attention.

caelin~