MagnaFlow - Ford Mustang Street Series Cat-Back Performance Exhaust System - 15671

The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Fits: 1999-04 GT 2003-04 Mach 1  Specs: Type = Cat-Back Series = Competition Main Piping Diameter = 2.5" Exit Style = Dual Split Rear Inlet Connection Type = Bolt-On Muffler Quantity = 2 Muffler Type = Straight-Through Muffler Material = Stainless Steel   DO IT YOURSELF Bolt-on installation. May require basic automotive knowledge for proper installation and professional installation is always recommended. Download the Installation Guide