Using a electronic boost controller will only result in fuel cut and detonation. I ran a apexi avcr on a passat turbo which had a big turbo conversion but i had the car mapped to the controller and really all it ended up being was a way of switching down to lower boost to save fuel, never ended up using the boost per gear functions etc
Unless you gonna spend serious money on the engine its a waste of time mate and your engine will go boom, all you bought as such was a electronic bleed valve