SP Concepts Big Bore Exhaust M8 Softail ST & Sport Glide 2018-Present - Stainless

SP Concepts Big Bore Exhaust for Monoshock Softail w/ Factory Bags (Stainless Finish) The Big Bore by SP Concepts is a full-system 2-into-1 exhaust developed for Harley-Davidson Softail motorcycles that are altered significantly from stock. Specifically, the system is designed for monoshock Softails with factory bags. Like most 2-into-1 pipes, performance is the reason this exhaust exists. With three-stage stepped head pipes and a short muffler, the Big Bore promotes exhaust velocity. It differentiates itself from the LaneSplitter by featuring a larger diameter muffler with a stepped baffle. Fits monoshock Softails with factory bags 4 1/2" rolled cone muffler with stepped 2 1/4" to 2 1/2" perforated baffle supports the high exhaust flow of large displacement engines .065" stainless steel head pipes step up from 1 3/4" to 1 7/8" and enter the muffler through 2" sections Header collars are machined of stainless steel Accepts 12mm or 18mm oxygen sensors; adapters included Hardware kit in