I was really expecting a stiffer construction sidewall given the fitment of the DRs on the front too. That's awesome though.
they upgrade the driveshaft?
https://jalopnik.com/dodge-challenger-hellcat-spills-its-guts-while-losing-d-1792444478
There is no "815" at least on the official video. Could be a troll Photoshopping it.