Sounds real good inside, its got that louder old muscle car tone to it in the cabin. You can hear it at idle which is nice but its not overly loud. Soon as you give it a little gas you hear the V8 start to rumble and shake the car a bit.
Little bit of drone at about 2,000 rpm's but its not to bad as I tend to not stay at 2,000 rpms for to long.
Love it though makes me miss not being able to drive the Mach 1.
Sounds awesome, I've been contemplating this as well. I love the sound in person, I'm currently talking with another company that is now in the works to release a new set up for our cars that I've been waiting on. I should hopefully have a variation of it by the end of May to test out, or else I would probably buy the stainless works one.