Colorado Blue said:Absolutely NOT! Problem w/ the JetChip is that your PCM will reprogram itself around the chip. JetChip does produce some impresive performance...but you will need to take it out for a few days on a regular basis, in order for your PCM to reset back to stock settings. A bit more involved explanation than that but that is the layman explanation. This info was recieved from MOPAR performance after I noticed a good power drop in my D three weeks after installing the JetChip. Buy a SuperChips Programmer for $100 more!