Referring back to Bernie's ultimate dyno post... it looks like this is very comparable to GT2530's. I've been using the "400rwhp" point as my comparison (very unidimensional, I know)... but these look like they pass 400rwhp at ~4400rpm, the "AVERAGE" of the GT2530 charts passes 400rwhp at ~4550rpm.
Sorry all if I'm stating the blatantly obvious, just making some observations... as both these turbos are on my "list".