Dyno Max Ultra Flows with 3" Pipes

I like it. I’ve added glass packs before and after the muffler to try and figure out which was whiter on the inside. Before had an edge. Not a huge difference.

Is the issue just inside the car or outside?

Just inside, it doesn't really drone much, just a bit on the loud side at rpm. I can't hear my kids talking to me from the backseat, which sometimes is a good thing!