Stainless Works Axleback Dual Turbo Custom Mufflers Factory Connect2016 19 Stainless Works, Cadillac CTS V Sedan exhaust system featuring 3" mandrel bent inlet bends into Dual Mode Turbo mufflers with 4" diameter quad slash cut tips. Each side is a complete one piece welded construction including the hangers. Factory Connect Axleback requires cutting of tailpipes in front of factory mufflers and fits to factory exhaust system. Includes functional Dual Mode Performance valves in the tips which operate in conjunction