The Black DPF series is our premier MagnaFlow Performance DPF series with a twist, featuring the same stainless construction but with the added protection and style of a High Temp Satin Black Coating applied from tailpipe to tip. Black Series Filter-Back Performance Exhaust System; 4in.; Incl. Tubing/6x6x6 in. Muffler/Tailpipes/5in. Round Tips; Dual Same Side Behind Pass Rr Tire Exit;BlackCoatedStainless; The Black series is our premier MagnaFlow Performance Series featuring stainless construction with the added style of a Black Coating applied from tailpipe to tip.