INSTALL INSTRUCTIONS MBRP S5241 Instructions 2021-Up - Ford Bronco, 2.3L/ 2.7L EcoBoost, 2-Door/4-Door 3" Cat-Back, Dual Split Rear Exit; AL Bolt-on Installation (2) 4" OD Dual Wall Tips Included Mild Exhaust Tone Up to 40% Flow Increase (2.7L) Up to 100% Flow Increase (2.3L) Up to 19HP & 9ft-lbs Torque Increase (2.7L) Up to 12HP & 12ft-lbs Torque Increase (2.3L)