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Cobb Tuning

COB 5F1100

Cobb Tuning 3" Cat-Back Exhaust System | 2017-2020 Ford F-150 (5F1100)

Performance Cat-Back 3" Exhaust System for 2017 - 2020 Ford F-150 by Cobb Tuning

The COBB Cat-Back Exhaust for the EcoBoost F-150 is constructed of quality 304 stainless steel tubing. Mandrel bends ensure maximum flow throughout the entire system. An integrated flex section provides a small amount of compliance during installation and reduces stress on components once installed. The triple-chambered muffler with 3" inlet/outlets keeps the exhaust note crisp and prevents unwanted drone. The three sections are joined together using cast 3" 2-bolt flanges and multi-layer steel gaskets for a leak-free assembly. Connecting to the factory downpipe assembly is a breeze with an OEM style 2-bolt flange.


  • Dual 4" Polished Tips w/ COBB Logo
  • 3" Mandrel Bent 304 Stainless Steel
  • Cast 304 Stainless Steel 2-Bolt 3" Flanges
  • Multi-Layer Steel Gaskets
  • Three Chamber Muffler with 3" In/Out


  • 2017 - 2020 Ford F-150

What's In The Box?

  • 3 - Main Exhaust Pipes
  • Mounting Hardware



  • COBB Tuning Limited Warranty