Stock tires I think but they prepd the street for him and by modded I mean tune and exhaust I'm not sure that's what I heard ether way the guy in the Hellcat was an awesome dude very cool guy
Did he pop the hood that night? If people are saying he has a tune and exhaust im betting he's stock then. I don't know of any tunes being available for Hellcats unless his car is a test vehicle for a shop before they release tune to the public, which is unlikely. SRT's have always been loud from the factory, I still can't believe how good my stock exhaust sounds.