I'll test one for you, for free.
I'll need a written agreement that if your chip does ANY damage to my engine* inside of 3 years or 75K miles, whichever comes first, you will replace it at your own expense.
I'll give you a full and proper write up here which you are welcome to copy anywhere else, but I reserve the right to tell the truth even if you don't like it. (after I've passed on any comments to you and have given you a fair chance to rectify any problems)
You, of course, can tell it as you see it.
Interested?
*as supported by a minimum of two independent engine specialists, one of whom you may chose as long as it's within 100 miles of me)