The Flowmaster® Outlaw Cat-Back Exhaust System is designed for 2021–2025 Ford F-150 trucks with 2.7L, 3.5L, or 5.0L engines and factory dual tailpipes. Compatible with both PowerBoost and non-hybrid models, this system delivers an aggressive exterior tone while increasing overall performance.

The system uses a Flowmaster Super 10 Series muffler combined with 3.00-inch mandrel-bent 409 stainless steel tubing to maximize exhaust flow and durability. Dyno testing shows maximum gains of up to 18 hp and 15 lb-ft at the rear wheels. The kit includes dual 4.50-inch black ceramic-coated stainless steel tips for a bold, customized appearance. Designed to use factory hanger locations, installation is easy with all required hardware included. The system clears the factory spare tire without restriction and is backed by Flowmaster’s Lifetime Limited Warranty.

Features

• Super 10 Series performance muffler for a deep, powerful sound

• Aggressive-to-moderate exterior exhaust tone

• 3.00-inch mandrel-bent 409 stainless steel tubing for maximum flow

• Dual 4.50-inch black ceramic-coated tips for custom styling

• Maximum dyno gains of 18 hp and 15 lb-ft at rear wheels

• Uses factory hanger locations for easy installation

• Includes all necessary hardware for at-home installation

• Clears factory spare tire without restrictions

• Lifetime Limited Warranty

Specifications

• Brand: Flowmaster

• Category: Exhaust

• Sub-Category: Exhaust and Tail Pipes

• Product Type: Exhaust System

• Part Type: Exhaust System

• Type: Cat-Back

• Exhaust Series: Outlaw

• Sound Level: Aggressive / Moderate

• Catalytic Converter Included: No

• Clamps Included: Yes

• Clamping Type: Flat Band

• Drive Compatibility: 2WD, 4WD

• Main Piping Diameter: 3.00 in

• Inlet Type: Flanged

• Muffler Included: Yes

• Muffler Series: 10 Series

• Muffler Type: Reflection

• Muffler Body Material: 409 Stainless Steel

• Muffler Body Finish: Black High-Temperature Paint

• Muffler Body Shape: Oval

• Muffler Dimensions: 9.50 in W × 4.00 in H × 6.50 in L

• Muffler Inlet Diameter: 3.00 in

• Muffler Outlet Diameter: 3.00 in

• Muffler Outlet Quantity: 2

• Exhaust Tip Quantity: 2

• Exhaust Tip Material: 304 Stainless Steel

• Exhaust Tip Diameter: 4.50 in

• Exhaust Tip Length: 11.00 in

• Exhaust Tip Finish: Black Ceramic Coating

• Exhaust Tip Edge: Rolled Edge

• Exit Style: Dual Out Rear

• Mount Type: Uses factory hangers

• California Proposition 65 Chemicals: Chromium (hexavalent compounds), Nickel (Metallic)

Fitment

Fits 2021–2025 Ford F-150 with 2.7L engine and factory dual tailpipes
Fits 2021–2025 Ford F-150 with 3.5L engine and factory dual tailpipes
Fits 2021–2025 Ford F-150 with 5.0L engine and factory dual tailpipes
Compatible with PowerBoost hybrid and non-hybrid models
Fits both 2WD and 4WD models