OBX Peformance Catback 13-16 Scion FR-S ZN6 86/13-16 Subru BRZ ZC6 BRZ, 12-18 Toyota FT86 GT86 FA20 Piping: 3.0" OD Tip: 4.5" OD Runner Wall Thickness: 16 gauge Flange Thickness: 0.40" Dyno Tested Track Proven Systems To Increase Torque And Horse Power Precise Computer CNC machined with DUAL-TIG welded construction High Performance Track Proven Premium SS Headers From OBX Racing Sports Backed by Limited Lifetime warranty from manufacturer defects