8k for a Turbo kit alone would be enough for me to look into trading up to an R/T because you need to do a lot of other updates Brakes, PCM has to be adjusted for it, so depending on what year Unlocking it , Tune by a Dyno / Performance Shop as well. Trans might need to be overhauled if a lot of miles on it etc., As with any performace upgrade expect more Maintenance comes with the mods.