I'd just buy one if they made one but everything I see is for the MX racer WOT peak hp full rip bad mamba jamba. Most are too loud and don't have a spark arrestor. I recently gutted my OE muffler and installed a 2" diameter perforated core the length of the muffler body. I stuffed the area around it with muffler packing. The OE spark arrestor still bolts on and is centered in the core. So essentially a glass pack that still uses the OE spark arrestor. Currently the small removable baffle is still in place, this allows me to keep OE jetting. Once I rejet, it will come out. Will be a bit louder but still acceptable. It was difficult to weld the OE muffler back together with my flux core Mig due to how thin the steel was, a Tig woulda done a lots nicer job. My new plan is to build a new muffler or modify an existing one to be more easily serviceable and quieter. Ok, so here is the criteria. - Quiet but still sound good, like a large glass pack does. - Spark Arrestor - Flows better than OE muffler I'd like to have an oval or tri-oval muffler body as large in diameter and long as will reasonably fit behind the number plate. The end cap will accept the OE spark arrestor. It has been my experience that an oval body glass pack is quieter than a round body, not sure why or the science behind it. Most tri-ovals are quiet too. How would y'all go about it? What else would you want/need in the Ultimate Woods Muffler?