Well, I just finished my new exhaust that includes ported manifolds catless 2.25” down pipes into a mangaflow res then splits into dual 2.5” around the old style gas tank (one pipe on top of another) and out through dynomax mufflers with turndowns. Fairly happy with the sound but the passenger side exhaust drones. This is the pipe on the bottom around the gas tank by the way so any suggestions?