#741-B Coffin muffler®,#741-B Coffin muffler®,ZARD Stainless Steel Racing Slip-On Exhaust '20-'22 Triumph Street Triple 765,#741-S Coffin muffler®,4SDVB-EK-PL Square Box, Steel, 30.3 cu-in Capacity, (13) Outlets, (13) Knockouts, 4 in H x 4 in W x 2-1/8 in D