Anyone know if there is a chip for the 2007 Ram 1500 4.7L? I cant find one anywhere. Is there a good reason why?

ive got a stage 2 Jet chip for my 07, i also put a mopar CAI on it and could tell a definite difference. the chip also helped the gas milage.

all the opinions i've heard about jet, other than tizzles, say jet is crap. i'd steer clear.