This BORLA® 3 into dual 2.25 Cat-Back™ system delivers the classic S-Type sound with no drone inside the vehicle. It exits through 4 bright chrome on T-304... This system features 4 bright chrome on T-304 stainless steel tips. BORLA (r) Cat-Back (tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower Cat-back Exhaust Borla 140615 S-Type Catback Exhaust System For 2015-2020 Ford F F-150 EcoBoost 2.7L 3.5L V8 Exhaust Upgrade Just what you?d expect from the world?s most experienced (and most winning) exhaust brand., EXCEPT Raptor models Add Adapter 60556 for Crew Cab Standard Bed (6' 7) 156., 8 wheelbase, or Adapter 60564 for Ext. Cab Long Bed (8' 2) 163., 7 wheelbase. Use Adapter 60556 For 157 WB., EXCEPT Raptor/ Limited. Best of all, Borla stands behind every system with a Million-Mile Warranty. Borla Cat-Back Exhaust for F-150 2.7L/3.5L EcoBoost 2015 | F150 Ecoboost Forum Borla Cat-Back & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numeric control (CNC) manufacturing ensures an accurate fit.