for the diablo, do yo just buy it and it is already programed?Well, not one answer, but some info of what I know. Unlocked PCM needed, either 2nd PCM swap, or send yours in to be unlocked. $700 to $1300 approx. new
Diablo tuners. Some are canned tune only, put on their 91 or 93 octane tune and get 13-15 HP and 15-20 Torque
Some will let you add a custom tune. Email tune, dyno tune...should pick up more, how much depends on octane run and tune/tuner you get it from. Generally easier to do.
HP Tuners, custom tunes, ability to tune many more functions, higher learning curve. Can get email/dyno tunes from tuners who use this platform. Have to buy credits, still need unlocked PCM, I'll let others reply on specifics of what's needed and cost
the tune would cost more than the diablo right?So, a tune will need the device, and unlocked PCM. I don't know if anyone will install just a tune. Normally they are either by email, where you log and send info to the tuner, they write you a new tune based on the info and you repeat that a few times until tune is dialed in.
OR, you go to a shop with a dyno, they do a run, tune, do a run, etc. until the tune is dialed in.
I will say that a tune specific to your car from a reputable tuner will be better than a canned tune, maybe considerably better
thank you for the infoHere one more thing to think about besides a tuner to modify the PCM and TCM, and that is alfaOBD. It is software ($50 or you can use it as free but in 15 minute intervals) that works with an OBD interface that allows you to add options to your ride by modifying the BCM. For example, you can activate STP/Launch control (see link below), add fog light, add back-up camera...etc. My buddy with an SXT charger added sport mode. He even replaced his HVAC control panel so all he has to do is push the sport button.
Adding launch control
First off I would like to thank DionR, who has a 2015 RT manual with STP and launch control, for posting his BCM and ABS module info pulled from alfaOBD. Basically this all started in this thread, post #38 where DionR mentioned something about adding drive modes using Tazer. Well that and his...www.challengertalk.com
It's similar to the Tazer from Zauto but it allows you to also diagnose all the vehicle modules as well (ABS, PCM, BCM, SRS...etc).