.
I would have to look it up but I think that on my K03 GTI with Revo Stage1 and only a flat panel filter in the OEM box, with the Milltek TBE (which I had fitted a long time before any remap), my car dyno'd at about 220-230 bhp on JKM's Dyno-Dynamics rollers.
I don't know what the R-tech Stage1 remap is like.
What's important is the smoothness of the curves on the dyno plot rather than the bhp number. Also that the AFR plot is nicely flat and even.