The limiting factor is the small 115pd VNT turbo, they can make good overboost and hold boost well to give a nice torque band but they dont hold high boost to well so tuning below 150bhp is to keep the turbo cooler and safe.
Our torque bands tend to last longer than most other remap, which makes them really smooth across the whole band, not a nasty spike then nothing.
IMO 160bhp from the 115pd VNT is trying a bit too much.
Nick