Description
The Flowmaster® American Thunder Cat-Back Exhaust System is designed for the 2021–2025 Ford F-150 with the 3.5-liter PowerBoost Hybrid engine. Built with durable 409 stainless steel tubing and mandrel bent for optimal exhaust flow, this system delivers improved performance and a deep, moderate-to-mild exhaust tone.
A specially tuned resonator reduces interior cabin resonance while maintaining an aggressive exterior sound. The system features a single 5.00-inch black ceramic coated stainless steel tip for a stylish, custom appearance. Installation is straightforward, using all existing factory hanger locations, and the kit includes all necessary hardware and instructions for a professional-quality installation at home. Backed by Flowmaster’s Lifetime Limited Warranty, this exhaust system combines performance, durability, and style for your F-150.
Features and Benefits
-
Constructed with 16-gauge 409 stainless steel for durability and corrosion resistance
-
Mandrel-bent 3.00" and 3.50" tubing maximizes exhaust flow and performance
-
Single 5.00" black ceramic coated tip adds custom style
-
Specially tuned resonator reduces interior resonance and produces moderate-to-mild exterior tone
-
Complete installation kit with factory-style hangers included
-
Uses existing factory mounting locations for easy at-home installation
-
Cat-back design improves horsepower, torque, and overall exhaust efficiency
-
Backed by Flowmaster Lifetime Limited Warranty
Specifications
-
Exhaust Type: Cat-Back
-
Muffler: Chambered, 409 stainless steel
-
Muffler Dimensions: 15.00" L × 10.00" W × 5.00" H
-
Muffler Finish: Black high-temperature paint
-
Main Piping Diameter: 3.50"
-
Inlet: Slip-fit, 3.00" inside diameter
-
Outlet: Slip-fit, single 3.50" rear exit
-
Exhaust Tip: Single, 5.00" round, black ceramic coated, 12.00" length
-
Sound Level: Moderate / Mild
-
Hangers: Included
-
Clamps: Included
-
CARB Compliant: Yes (Emission Code 5)
-
Prop 65 Warning: Chromium (hexavalent compounds)
Vehicle Fitment
-
2021–2025 Ford F-150 3.5L PowerBoost Hybrid
The Flowmaster American Thunder Cat-Back Exhaust System delivers a deep, refined tone, improved performance, and a custom black tip, making it the perfect upgrade for your 2021–2025 Ford F-150 3.5L PowerBoost.
