A good product, but it could be better
installation was easy and simple. Beside drilling in exhaust manifold for egt sensor and dashboard for the switch, everything else was plug and play. Which is great when something go wrong, just pull over and disconnect three wire harnesses, plug in original and drive on till you can investigate the problem properly or call tech support; Which I had to do. I would write the whole experience, but I'm limited to 500 character. Let's just say it was a three weeks of drama so far and good result.
This thing unleashed the beast
Huge difference in my 4.7 Grand cherokee...woke it up! this thing runs and gained 2 mpg in fuel economy. Only reason I rated ease of installation low was because I haD TO WASTE 15 mins updating it on my pc. for the amount of money I paid it should be pre updated. and its a bit pricey.