I knew that was coming. First things first FATSO remove that dpf and you will have some improvement. Then get yourself a tunerThe last thing you want is a dodge.... there is a reason that they went BROKE!! so I won't say anything else on that...
But you can't go wrong with a Spartan or SCT. They will give you tire burning power with good throttle response and way better shifting!! Mileage will be minimal, there are some claiming 5 or more MPG but I only saw maybe 3; but the fun factor is more than worth it!
Stay away from the other tuners; they may be chepaer but they are causing MAJOR prblems (trannys especially)
hope that helps
If you want to delete the DPF then obviously you have to! you can get DPF on tunes but they are only 100hp I think. The best economy seems to come from the high HP tunes (if you can keep your foot out of it!)BUT do I have to change the exhaust??? Or does it just make it that much better?