When I let off the gas and downshift it crackles/burbles like crazy when compression braking happens. In the case of when I first bought it, it was loud like no muffler at all, just cats, but with a 2.25" glasspack i'm assumin was burnt out by the loudness. I'll search youtube later to see what I can find that is similar.

Current setup has the typical V8 rumble/Cherry Bomb burble at idle/part throttle and barely any resonance in the cab, but I do hear it. Step on the pedal and it has the loud V8 roar with some of that Cherry Bomb burble.

I got a 302 btw.