Oh Gaaaaard!
I'm still awaiting someone to develop the engine manager for my computer on the 2002 Explorer V8 4.6 Auto Limited. I frequently check
http://www.hypertech-inc.com/, but there seems no progress. I believe this is a problem as there isn't anywhere to plug in one of their aftermarket 'chips' or 'modules'.
Alas and alack! I sure had fun with a couple of 351W F-150s I owned when I lived in the US. Got on average, a 20-25% uncrease in power and fuel economy.
If anyone has any news, I'd be most obliged.
All the best,
Terence
(Australia)