I believe it's a 22" muffler. Zero drone from mine. Been on almost a year. Love it!Its a 18 inch muffler. You get a little bit of drone but not too noticeable. It does vibrate a little when the MDS kicks on, but I dont think you can avoid that when going with an performance exhaust system.
12288 is the part number, if you need one let me know, we will get it out to you at the lowest prices aroundWhat is the part number for the muffler in this kit? I love the sound of the 18" but I'm not interested in installing a whole new exhaust on a 2013 truck.