Flowmaster Flow FX Cat-Back Exhaust System Fits 2021-2025 Ford F-150 2.7, 3.5, 5.0-Liter, Flow FX Cat-Back 3.00-inch Stainless Steel Exhaust System, Single Out Side Exit - 718115

The Flowmaster Flow FX Cat-Back Exhaust System delivers a powerful sound upgrade and proven performance for 2021–2025 Ford F-150 2.7L, 3.5L, and 5.0L trucks. Designed with 3.00-inch mandrel-bent 409 stainless steel tubing, this system maximizes exhaust flow while offering long-term durability and corrosion resistance. The Flow FX series muffler produces an aggressive to moderate tone, giving your F-150 a deep and refined exhaust note without excessive cabin drone.

A large 4.50-inch black ceramic-coated stainless steel tip adds a custom appearance, while dyno testing shows gains of up to 13 horsepower and 16 lb-ft of torque at the rear wheels. Installation is simple with included hardware and the use of factory hanger locations. Backed by Flowmaster’s Lifetime Limited Warranty, this system is built for performance, style, and longevity.

Fitment (Separate Section)

• Fits 2021–2025 Ford F-150

• Fits 2.7L, 3.5L, and 5.0L engine models

• Single Out Side Exit

• Cat-Back Exhaust System

Features

• FlowFX Series performance muffler provides aggressive to moderate sound levels

• 409 stainless steel construction for improved durability and corrosion resistance

• Dyno-proven gains of 13 hp and 16 lb-ft at the rear wheels

• 3.00-inch, 16-gauge mandrel bent tubing maintains maximum exhaust flow

• Includes all hardware needed for at-home installation

• Large 4.50-inch black ceramic-coated exhaust tip

• Uses factory hanger locations for an easy, secure installation

• Backed by Flowmaster Lifetime Limited Warranty

• Brand: Flowmaster

• California Proposition 65: Yes

• Proposition 65 Chemical: Chromium (hexavalent compounds)

• CARB Compliant: Yes

• Catalytic Converter Included: No

• Category: Exhaust

• Clamping Type: Flat Band

• Clamps Included: Yes

• Emission Code: 5

• Exhaust Series: FlowFX

• Exhaust Tip Color: Black

• Exhaust Tip Connection: Clamp-On

• Exhaust Tip Cut: Angled

• Exhaust Tip Diameter: 4.50 IN

• Exhaust Tip Edge: Rolled Edge

• Exhaust Tip Finish: Black Ceramic Coating

• Exhaust Tip Intercooled: No

• Exhaust Tip Length: 11.00 IN

• Exhaust Tip Material: 304 Stainless Steel

• Exhaust Tip Quantity: 1

• Exhaust Tip Resonated: No

• Exhaust Tip Shape: Round

• Exhaust Tip Wall: Single Wall

• Exit Style: Single Out Side

• Finish: Natural

• Gasket/Seal Included: No

• Grade Type: Performance

• Hangers Included: Yes

• Inlet Type: Flanged

• Main Piping Diameter: 3.00 IN

• Mount Type: Uses Factory Hangers

• Mounting Bracket Included: No

• Muffler Body Height: 4.00 IN

• Muffler Body Length: 18.00 IN

• Muffler Body Material: 409 Stainless Steel

• Muffler Body Shape: Oval

• Muffler Body Width: 9.00 IN

• Muffler Color: Silver

• Muffler Finish: Natural

• Muffler Flanged Inlet: No

• Muffler Flanged Outlet: No

• Muffler Included: Yes

• Muffler Inlet Connection: Slip-Fit

• Muffler Inlet Inside Diameter: 3.00 IN

• Muffler Inlet Location: Center

• Muffler Inlet Outside Diameter: 3.13 IN

• Muffler Outlet Connection: Slip-Fit

• Muffler Outlet Diameter: 3.00 IN

• Muffler Outlet Location: Center

• Muffler Outlet Quantity: 1

• Muffler Overall Length: 24.00 IN

• Muffler Part Number: Kit Only

• Muffler Quantity: 1

• Muffler Series: FlowFX

• Muffler Type: Absorption

• Part Type: Exhaust System

• Pipe Color: Silver

• Pipe Material: 409 Stainless Steel

• Product Type: Exhaust System

• Sound Level: Aggressive / Moderate

• Spring Bolt Kit Included: No

• Sub Category: Exhaust and Tail Pipes

• Tail Pipe Outlet Outside Diameter: 3.00 IN

• Tail Pipe Quantity: 1

• Tail Pipe Tapered Outlet: No

• Tip Logo: Embossed

• Type: Cat-Back

• Valve Included: No

• Valve Type: Not Applicable