Not a whole heck of a lot. Single chamber, I got these on my '05 Mustang GT and love the tone of them. My hand spans the length of the chamber Of course these obviously aren't recommended for the faint of heart when it comes to noise levels. Really interior wise it's not that bad until you get the highway drone which I block out with radio. But I prefer chambered sounding exhaust over say no tone loud raspy exhaust like Cherrybomb/Glasspacks or SLP. But if loud exhaust doesn't bother you or your neighbors this is the way to go. Pretty dang affordable too considering how much other exhaust setups cost.
Well here it is folks. It is loud but not as horrifically droning as my phone's little microphone makes it seem. Haven't been on the Highway yet but on the streets the actual drone level hasn't changed just the bass of the exhaust pulse which I personally can live with. Enjoy, I'll try to get some exterior drive by's when I get the time
https://www.youtube.com/watch?v=C5musoFxIgQ
I finished mine now and did a full cat delete with a cherrybomb extreme muffler dual 2.5 in and out, ran out the bac with 12" x 3" tips. It sounds mean when on it and not to loud at idle or light driving.
Do you have any video of it? Would love to hear your setup
I can get one tomorrow, it's a bit to late to do it now.
Accarguy, did you order the MAC from Henson?
I got my exhaust right from mac. And it does sound pretty good. Has a nice rumble at idle and nice sound when accelerating. It does have more sound to it at lower rpm versus high rpm. But overall it sounds good not too loud but loud enough.