MagnaFlow 13 Scion FR-S / 13 Subaru BRZ Dual Split Rear Exit Stainless Cat Back Performance ExhaustThe MagnaFlow Street Series Cat Back Performance Exhaust System 15157 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno proven performance. Thanks to its fast flowing, mandrel bent 2. 5in. main piping and 2 Straight Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded On Double Wall Angle Cut Folded Edge tips, this Car exhaust kit has the performance chops to match its sporty sound