We installed the MBRP cat-back exhaust tonight on my Challenger R/T and it's a fantastic system!! Easy installation, brilliant solid hangers for effortless tip alignment and a killer sound! I just put together a video of some sound clips from the short test drives around the shop tonight. We are going to the track tomorrow night, so there will be more videos to follow there and from in-car. Video: tvBMC.com You will hear at idle there is a fluttering sound (I think it's more related to the high flow exhaust with square tips than a particular system, as the Cragar had a similar, but lesser, effect at idle). It gives it a retro sound, actually, but I am interested to see if this goes away any with break-in of the system, so I will keep you all posted on that. At speed, it's really deep, with a great rumble, a very solid feel and sound. I haven't been on the highway yet, but got up to 60 mph on the short trip home and you could hear the exhaust note, but it didn't drone at all. Great system, MBRP!!
