Have a set of TAB Muffler INSERTS; one is a 2.5" baffle, one is a ZOMBIE baffle, which will fit in 4" TAB Performance muffler for Indian Chieftain, Roadmaster and Challenger. I bought both sets new from TAB and put one in each muffler for a nice combination of sound and backpressure for optimal performance. You can do the same. Won't be disappointed. There might be 200 miles on these. Will include the fiberglass packing material as well and set screws. Will ship in original box; $85 and I'll pay for shipping in CONTUS. Call/text me for more details; 508-962-1031.