performance chips?

[jeepjeep!]

Anyone using or have used any performance chips or tuners for the 4.0? Have an 04 4.0 cai and catback. . Also heard that after so many miles the computer learns the difference in airflow and it does no better than stock intake. .back to the chips. . some chips i've read about mess with transmission shift points and stuff. . I know the transmissions with these motors ain't that tough so. .any help would be nice

 

[jeepRutz85]

Buddy of mine used a hypertech tuner on his 96 xj. Worked great for him.

 

[altan]

I got a flash pad by superchips not worth it no real power difference I would try something else jp magazine has a tuner shoot out I would check that out first