Lxforums.com is a pretty good forum with a decent amount of info. I have a 2016 Charger Scat Pack and have found that forum to be useful for me and they also have a lot of members that have the first gen LX cars. I have a custom email tune from Hemifever tuning via a Diablo inTune and I highly recommend going that route as he tunes all gen 3 hemis. On my car, the tune is what made the most noticeable difference.