2.5 from headers to x pipe, then run along the tunnel to Summit welded mufflers, Turn downs come out of the mufflers towards the tires.
Engine is a small block at 11:1, so its got a bit of growl too it. It doesn't seem loud idling in the garage. I haven't got it out on the street yet. I anticipate it may be a bit loud and possibly drone at road speeds because at a certain angle, you can see straight through the muffler. Contemplating running tubes over the axle into a resonator if it is, but we'll see. I might also consider a swap to Dynomax Super Turbos to tone it down. We'll see once I get it on the road regularly