GHL's drone-free, 3-inch SS Dual catback exhaust system for the MAZDA MPS 6 includes 3-inch polished SS tubing. The system is bolt on reusing all of the stock exhaust mounting points. All components are built using U.S. Rath T304 stainless steel. All products manufactured by GHL Motorsports offers a life time warranty and stand behind their products! Made in USA.