Assuming that you can use the same BV on the Evo as the 2G eclipses...I always liked the 1G valve but its not loud...I know have tials in both of my cars...they vent to atmosphere.

 

I have the HKS, no problems yet (a year in Aug.) Great sound, plus it has 2 valves so it releases even under minimal boost (less compressor surge) Its a pull type, so technicly it should be able to hold more boost than anything that relies on a spring, but most aftermarkets are good enough to hold 25 psi easy anyways... Has anybody elses gas mileage gone down the crapper after installing a BOV? ::EDIT:: Oh yeah, and there is a re-cerc kit for it too if you want to try and reduce the stutter from faulty MAS readings after a vent-to-atmos BOV is in ::EDIT::

 

Ive had tials for 6 years and 3 years respectivly on my two eclipses...Never been touched or anything since then. (For the most part). I have also heard HKS makes a good BOV.