I've seen it quite a few times in their shop and talked to them about it. It's a pretty basic Challenger drivetrain wise, 340-6 pack 4-speed. The suspension is all of their Hotchkis stuff. It doesn't even have a cage as most the interior except for the front seats is stock. However, it does have huge Stoptech rotors and calipers. I can't tell you the specs, but I believe it's close to 14" rotors and maybe a 6-piston caliper up front. Probably around 12" rotor in the rear with a 4 piston caliper. It's also running on Forgeline wheels and I think 295's on all 4 corners. I know a couple of years ago they were running 265's up front.

In my experience, and being around the SoCal Autocross scene, a fast car is 75% driver, 15% tires, 5% suspension, 5% others.