Resonator/Muffler
Looking to install a larger/ longer resonator in my B-13 mid-pipe. Checked vendors ,but didn't see anyone offering a 2 1/4 in 2 1/14 out, perforated core resonator or 4 or 5 inch round muffler 24 to 27 inches in length. Does anybody know if such exists and who makes it ? thanks for any help.