A large clear sight window allows for filter inspection without removal of the air box. The roto-molded housing is made out of black cross-linked polyethylene. It accommodates the "Hellcat" headlight air inlet for 2015-2023 Dodge Challenger models only (requires scoop p/n54-72203-S ).
Definitely a difference in throttle response and acceleration. Not a major difference in power but very noticeable and it looks pretty good in the engine bay. Was a little tight fitting and took some time getting everything lined up but worth it in the long run. Also a noticeable difference in the exhaust tone, might not hear it right away and may need to break it in a little but it is definitely louder. Especially if you have a modified or aftermarket exhaust.
I had more HP with my regular air box and a K&N filter in it. Definitely returning this for my money back. 2013 Charge R/T 5.7L is struggling for HP that it's really noticable.