ITR muffler would be good at reducing noise but 2.5inch is too big for a d15 wouldnt bother going beyond 2" on that engine.

is the Xforce cannon the hotdog cannon or the oval muffler cannon, the oval muffler canon would be ok, and it was one they offered for a jazz in an axle back (i have one) with one hot dog resonator a 2inch system headers + standard cat it is not loud at all nice quiet rumble, and makes more like a silent power kind of noise.