Inspired by Speedy's CAI addition to his Arrington/Maggie I did this on my Charger but its the same kit for the Challenger.
Installed this yesterday. The heat sheild is a bit of a rough fit - I may pull it and rework it a bit. The edges are a little sharp but its aluminum so I may roll them a bit since under torque they touch the coolant tank and one of my SC intercooler lines.
Anyway looks cool - sounds great. I'll have to get it on the dyno to see a) any HP/torque gains and b) changes in the AFR - may have to add fuel.
(A bit blurry)