As i said in my previous post their reputation is quite interesting and the Facebook group is quite entertaining. Im not looking to defend my purchase OR my choice of tuner. That video you posted up has an explanation behind it one of which I'm not going to go into as its stupid and petty in the tuner world. I didnt post in this thread to go into detailed explanation about the tune or tuner. All i care is that it worked 100x better than the boostmax.
As far as dyno time in my Expy, no it has not seen the dyno, nor does it need to see one for the tune. I bought the JMS Boostmax and Pedalmax cause i saw a few dyno runs and video showing a 90hp increase. Turned out to be baseless claims and to top it off downright dangerous when it fails on you in -1 weather.
And you know as well as i do owning a high performance vehicle a canned tune is nothing more than some timing added and rev limiter change to the stock pcm. This is not that. Not even close.
Btw guys there are MANY tuners out there for these trucks. Dont need to rely on just 5 star for a tune.
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