Really didn't mean to burst your bubble. In fact, yours is the first I know that has had a dyno run after the TBs have been changed. But what I am saying is, what if your bike was making 162hp before the mod? Unlikely, I know, but that is my point, what is the difference that the TBs made?
In contrast my '09 with Flies out, AreaP full exhaust, carbon can, BMC air filter, PC-V with Jamie's standard map is making 151 hp. What you need to know is the same day, completely stock, the bike made 134 hp which is roughly a 12% gain.
If I added the ZX TBs, I would get a dyno run done, install them, tune the PC-V map, and make a final dyno run.