Stainless Works 2015-23 F-150 5.0L Catback Performance Redline (part # FT21CBUBR), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2015–26 F-150 5.0L
Catback Exhaust
Lifetime Warranty
Made in USA
Overview
Improve the performance and sound of your 2015–26 F-150 5.0L with a premium catback exhaust system from Stainless Works. Available in Legend or Redline Series, this 3" exhaust system is designed with multiple exit positions and tip styles to match your personal preference.
Our signature Redline and Legend sound profiles are designed with specific drivers in mind. Legend systems are designed with the daily-driver in mind — improved tone with restrained loudness. Our Redline series is designed to maximize the volume and tone of the engine, while still eliminating any drone in the cabin. Resulting in a feeling that will make you want to high-five your friends in the face[reference:0].
This system features dual mufflers and dual 3-1/2" polished slash-cut tips. Designed to fit to the performance connection point for a true 3" exhaust end-to-end[reference:1][reference:2]. Built from corrosion-resistant 304 stainless steel and TIG welded at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term durability and performance[reference:3].
Why Stainless Works
- American-made from raw material to finished product
- TIG welded by skilled craftsmen for strength and beauty
- Lifetime warranty on material and craftsmanship
- Direct bolt-on fit for 2015–26 F-150 5.0L — SuperCrew & SuperCab
- Performance Connect systems for true 3" exhaust end-to-end
Key Features
Legend or Redline Series
Choose your preferred sound profile — refined daily-driver tone or aggressive maximum volume.
3" Catback System
Full 3" diameter for maximum exhaust flow and performance.
Performance Connect
Designed for true 3" exhaust systems end-to-end.
Multiple Exit & Tip Options
Front of Tire (Lightning), Behind Tire, or Under Bumper exit.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2015–26 Ford F-150 5.0L — SuperCrew & SuperCab |
| System Type |
Catback Exhaust — Legend or Redline Series |
| Diameter |
3" |
| Muffler Design |
Dual Mufflers |
| Exhaust Tips |
Dual 3-1/2" Polished Slash-Cut |
| Connection |
Performance Connection Point — True 3" System |
| Exit Options |
Front of Tire (Lightning) — Behind Tire — Under Rear Bumper |
| Tip Styles |
Front of Tire: Double Wall Polished
Behind Tire: Single Wall Polished
Under Bumper: Double Wall Blackout |
| Shelby/Roush Compatibility |
Under Bumper Exit fits Shelby and Roush Editions |
| Drivetrain |
Fits 2WD and 4WD |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
⇩ Download Installation Instructions (FT21CBUBR)
⇩ Download Installation Instructions (FT18CBFT)
See It In Action
Sound Comparison and Features — 2015–26 F-150 5.0L Catback Exhaust System
What's In The Box
Example shown: Performance Connect exiting in front of passenger rear tire. Contents vary by configuration.
- Long Body Resonator
- Tailpipes x2
- AccuSeal Clamp with Flat Hanger
- Hi-Temp Rubber Grommet
- Long Stud Bolts
- Flat Washers x2
- Nyloc Nut
- AccuSeal Clamps x4
- Hanger Assembly
- Installation Instructions
Frequently Asked Questions
Will this catback fit my 2015–26 F-150 5.0L?
Yes. This catback exhaust is designed specifically for the 2015–2026 Ford F-150 with the 5.0L engine. It fits 2WD and 4WD SuperCrew and SuperCab trucks[reference:4]. It is a direct bolt-on system that connects to the performance connection point for a true 3" exhaust end-to-end.
What is the difference between Legend and Redline Series?
Legend systems are designed with the daily-driver in mind — improved tone with restrained loudness[reference:5]. Our Redline series is designed to maximize the volume and tone of the engine, while still eliminating any drone in the cabin[reference:6]. Both deliver aggressive exhaust notes with distinct personalities.
What exit and tip options are available?
Front of Tire (Lightning) exit features double wall polished tips. Behind Tire exit features single wall polished tips. Under Rear Bumper exit features double wall blackout tips and fits Shelby and Roush editions[reference:7].
What warranty is included?
Stainless Works provides a lifetime warranty on material and craftsmanship — covering the full life of the product, not just a limited term.
Questions? Call us at | Mon–Fri 7:30am–4:30pm EST
Built To Order in 4 Weeks — Free Shipping on Orders $50+
This Listing
- Brand: Stainless Works
- Part number: FT21CBUBR
- Product type: Cat-back exhaust
- Fitment: 2015-23 F-150 5.0L
- Configuration: Stainless Works Headers (Performance Connect), Redline (Most Aggressive), Under Rear Bumper
- Shipping weight: 85 lb
California Prop 65 warning applies to this product.
Fitment note: Stainless Works systems are application-specific (year, cab/bed, transmission and factory exhaust). Send us your VIN before ordering and we will confirm fitment: 954-507-6261 or sales@americanmuscleperformance.net.
