For MR2 Spyder 3" Dual Path Tip Catback+Manifold Header Exhaust System - W30 MR-S Made of High Quality Stainless Steel Material TIG Welded CNC Machine Flange Increase High Flow Air and Maximize Performance; Instant Gain 10 to 15 Hp. / Tq.; Aggressive Deep Sound while Ensures Smooth Exhaust Gas Flow Catback - Muffler Tip Type: Dual Tip / Tip Diameter: 3" Header - O2 sensor bung insertion / Metal gasket included / Inlet: 1.5" / Outlet: 2.5"