aFe Power 48-44004 MACH Force-Xp 3" - 3-1/2" Stainless Steel Exhaust Y-Pipe (Non-CARB Compliant) Constructed out of stainless steel, True 2-into-1 mitered merge collector, Mandrel-bent 3" piping transitions into single 3 1/2" piping 48 state-legal, 400 cell High-Flow Catalytic Converters, High quality OE-style flanges, band clamps are used for a 360 degree sealing, Includes all necessary mounting hardware OE sensor bung, OE-style bayonet hangers and flanges, Utilizes factory mounting locations Combine with aFe header for even better performance, horsepower and fuel economy Manufactured and Assembled in the USA