Have you noticed a difference post install? I really like this option to allow for "many" custom tunes to my weekly taste, the initial price is hefty compared to PCM so it pays in the long run(additional shipping each flash.. no disrespect to PCM as I have not used them... YET

) and also since my warranty dealership is not to "mod friendly" when it comes to claims. So the return so stock function really saves me the "you altered this so your warranty is VOID" BS. Is this the same unit you're talking about?
HYPERTECH MAX ENERGY TUNER 2006-13 GM CARS TRUCKS SUV'S
http://bit.ly/UGozlA
Sent from my secret lair bwaaahhahahahah