Okay, so pursuant the thread on 4DRHTRD's discussion / research / development of the hard "hot pipes"
(see/refer to this thread below)......
http://www.ecoboostperformanceforum.com/index.php?topic=615.15I would like to introduce a new thread on any product recommendations as it relates to after market BOV's.
Since 4DR recently stated that there is NO performance difference between rolling with two BOV's (I.E. the factory setup) versus a single BOV (I.E. 4DR's new hard hot pipe design)......
I am wondering if any of the members of the community have any recommendations on after market BOV's?
I performed some research on my own, but am still a little bit confused.

1st, does anyone know what design are the factory BOV's? Are they "push" or "pull" design?
2nd, what should one be looking for as it relates to after market BOV's?
3rd, it seems HKS is like the industry standard for after market BOV's.
4th, (and this is directed mostly towards 4DR) but what type of BOV should one be shopping for as it relates to the soon to be released hard hot pipe upgrade?
Thanks in advance, for any experiences, recommendations, or anything of the like, as it relates to this particular thread.