I would be mighty p**sed off with Superchips. It would be very tempting to go in and read the riot act to them but I think that as others have said, polite but firm is the best approach. They quite clearly state that you should receive an increase of 61 bhp. In truth you have not come close. Give them a chance to rectify it, if they cannot then ask for your money back.
Chungster and RR - I don't think REVO are much different. They clearly state that the bhp should increase to 255. Again, neither came close. The method of measurement can't be in question as the standard cars were pretty much bang on where they should be. I would be asking serious questions from them as well. RR, I do agree with a lot of what you said regarding driveability. As others have said, the whole issue around bhp increase is similar to the 'who can p**s furthest up the wall' debate. But I don't think we should be making excuses for companies who, in my humble opinion, are running the risk of being accused of false advertising.
....Putting driveability aside (I think we are all agreed on that), my Stage2 plot was simply not up to expectations by any stretch of the imagination. However, in my case there are a number of possible reasons : -
1 - I was stupid enough (too busy talking to you guys) to forget my engine was left idling for a good 15-20 minutes, though JKM didn't think this was a big factor.
2 - My battery had been disconnected at VWR for considerable time (I need to check this). This can cause a reset to stock but I did Revo switch to Performance.
3 - I may not have switched properly or it could be wrongly loaded - Revo can check this.
All this demonstrates a few things : -
1 - A dyno run is an excellent opportunity to check your engine's health - At least my curves were smooth (as Mae West might have said).
2 - Being with Revo (and not Superchips), I have total peace of mind - Revo HQ will sort out any problems without any arguments whatsoever, in fact quite the contrary! JKM will further assist if called upon to do so.
If I have to quote a number, my expectation from Revo Stage2 is around 260 bhp on a good day.