Easy, economical way to upgrade your existing exhaust system into a 2-into-1 system. Kit uses the stock headers. Removes the left-side muffler and crossover pipe and routes the exhaust through a single right-side muffler. Included stainless steel crossover plug and clamp makes for a clean, simple installation. Your choice of 4" Grand National or 4.5" GNX muffler with a chrome or Guardian black finish. Grand National muffler end cap. Removable dB reducer is J2825 compliant. Replacement stainless steel crossover plug and clamp available separately. Made in the U.S.A. NOTE: Qualified Manufacturer Declared 50-State emissions compliant part on all 2017-2025 year FL Touring models.