Has anyone tired the jet power module? If so where their a noticable gain?

 

IMO they're a waste of money only a few people have had good results with them.

 

i had the Hypertech equivalent...and it did nothing...felt no difference, ended up taking it off because it kept tripping an SES for faulty MAP sensor even though it was new....pulled the unit, and the SES went away.

waste of money, spend it on pcmforless if you wnat a better program

 

In my experiences with it, i'd say if u are going to leave the car pretty much stock, then its worth it. Definetly not worth paying anything over 60.00-75, but i got mine for 40 shipped, then when i got serious about mods....i sold that puppy on ebay for like 125

Otherwise if u plan on doing stuff, go no further then "madwolf" here on this board or www.pcmforless.com