The problem is that, unless every one is done on the same dyno, under identical conditions, the actual figures quoted are pretty much meaningless.
What is important is the percentage improvement, but that, too, can be fudged or a tune done that results in a ridiculously high number but is totally undriveable.
A search would have found a number of other, related threads, including one specifically for dyno results.
https://www.newtriton.net/phpbb/search.php?st=0&sk=t&sd=d&sr=posts&keywords=dyno+results