What do we think about the stage 1 Jet chips for JKs? Do they do anything? Do they void warranties? If they void warranties, can't I just pull it out before any service appointments and thus "sneak by"? Etc. Etc.
Q-tec's website talks about them like they've come from the heavens. It's hard to believe they're that great, but a few extra ponies would sure be nice in a JK.
I know of course a custom tune is best, but if a Jet chip produces 80% of the results at 50% of the cost, it could be worthwhile.