Don't VTA with this car. It's a boost leak that would cause your engine to run rich when venting, due to metered air being discarded. To run this properly, I believe you would need to somehow compensate (reduce/cut) fueling at the right times.
I'd really like to... But I won't try new parts that I don't need until I get some essential mods done first. I haven't even upgraded my fuel pump yet, which I need to do real soon!... Why don't you buy one and let us know!?