Ohk I just purchased a 2016 charger 5.7. I’m new to the mopar family. I want to do a mid performance urban build, big rims 24s or 6s, decent enough horsepower to pull the rims maybe 400-450 hp lotta torque. I just purchased diablo tuner long tube headers a bigger throttle body an some appearance mods(hellcat bumper kit and some engine dress up)none of which have been put on yet.but I’m looking to do what I think is called a rear diff swap right now I think that makes the rear end posi instead of opened right?Welcome. Can you maybe explain what all you are wanting/trying/doing? Your post title and introduction are a bit confusing.