My catless M340 with the AWE resonated touring is awesome. I barely hear it on the highway or city ~45mph speeds but gets loud if I hammer it just as the turbo gods intended. Letting off with BM3 tunes does give a second of burble in Sport+, but in Comfort/Adaptive, burbles are off as far as I can tell. Cold start off helps early AM noise for the neighbors. Everybody wins. Who doesn't like the sound of the B58 anyway