21-26 Ford F-150 2.7L/3.5L/5.0 Flowmaster 818168 Outlaw Cat-Back Exhaust System

Flowmaster Outlaw Cat-Back Exhaust System - Part Number 818168

Designed for 2021-2026 Ford F-150 models equipped with the 2.7L, 3.5L, or 5.0L engine and factory dual tailpipes, the Flowmaster Outlaw Cat-Back Exhaust System delivers an aggressive exhaust tone, improved exhaust flow, and a custom appearance. The system is compatible with PowerBoost and non-hybrid models and uses a Super 10 Series performance muffler engineered for a deep, powerful sound. Dyno testing measured maximum gains of up to 18 horsepower and 15 lb-ft of torque at the rear wheels over the stock exhaust. With 3.00-inch mandrel-bent 409 stainless steel tubing, dual 4.50-inch black ceramic-coated stainless steel tips, factory hanger locations, and all necessary installation hardware, this performance exhaust system provides a durable upgrade with an easy installation approach. The system does not fit models equipped with the OEM active exhaust option.

Key Features

• Outlaw Series cat-back exhaust system designed for 2021-2026 Ford F-150 applications with factory dual tailpipes.
• Compatible with 2.7L, 3.5L, and 5.0L engines, including PowerBoost and non-hybrid models.
• Super 10 Series performance muffler produces a deep, powerful, aggressive exhaust tone.
• Maximum dyno gains of up to 18 hp and 15 lb-ft over the stock exhaust at the rear wheels.
• 3.00-inch 16-gauge mandrel-bent 409 stainless steel tubing promotes maximum exhaust flow and durability.
• Dual 4.50-inch black ceramic-coated stainless steel exhaust tips provide a customized appearance.
• Dual rear exit configuration clears the factory spare tire without restrictive flattening like the factory tailpipe.
• Uses factory hanger locations for straightforward installation.
• Includes clamps, hangers, mounting bracket, and necessary installation hardware.
• Backed by Flowmaster's Lifetime Limited Warranty.

Benefits

• Provides a more aggressive and powerful exhaust sound through the Super 10 Series muffler.
• Helps increase performance with maximum measured gains of up to 18 hp and 15 lb-ft at the rear wheels.
• 3.00-inch mandrel-bent tubing helps maintain efficient exhaust flow for improved power potential.
• 409 stainless steel construction provides added durability and improved long-term corrosion resistance.
• Black ceramic-coated 4.50-inch tips enhance the truck's exterior styling with a performance-focused appearance.
• Factory hanger locations simplify installation without requiring alternative mounting locations.
• Included hardware supports an at-home installation.
• The Lifetime Limited Warranty provides long-term warranty coverage from Flowmaster.

Product Specifications

• Brand: Flowmaster
• Part Number: 818168
• Product Type: Exhaust System
• Exhaust Type: Cat-Back
• Exhaust Series: Outlaw
• Grade Type: Performance
• Main Piping Diameter: 3.00 inches
• Pipe Material: 409 Stainless Steel
• Pipe Finish: Natural
• Muffler Series: 10 Series
• Muffler Type: Reflection
• Muffler Material: 409 Stainless Steel
• Muffler Color: Black
• Muffler Finish: Black High-Temperature Paint Finish
• Muffler Shape: Oval
• Muffler Body Height: 4.00 inches
• Muffler Body Length: 6.50 inches
• Muffler Body Width: 9.50 inches
• Muffler Overall Length: 12.20 inches
• Muffler Quantity: 1
• Exhaust Tip Quantity: 2
• Exhaust Tip Diameter: 4.50 inches
• Exhaust Tip Length: 11.00 inches
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Finish: Black Ceramic Coating
• Exhaust Tip Color: Black
• Exhaust Tip Shape: Round
• Exhaust Tip Cut: Angled
• Exhaust Tip Edge: Rolled Edge
• Exhaust Tip Connection: Clamp-On
• Exit Style: Dual Out Rear
• Tail Pipe Quantity: 2
• Tail Pipe Outlet Outside Diameter: 3.00 inches
• Mount Type: Uses factory hangers
• Clamping Type: Flat Band
• Clamps Included: Yes
• Hangers Included: Yes
• Mounting Bracket Included: Yes
• Sound Level: Aggressive / Moderate
• Catalytic Converter Included: No
• Catalytic Converter Quantity: 0
• Valve Included: No
• Warranty: Lifetime Limited Warranty
• California Proposition 65: Yes
• Emission Code: 5

Install Difficulty Level

Easy. The Flowmaster 818168 uses factory hanger locations and includes the necessary installation hardware, making the system suitable for an at-home installation. The supplied product information does not specify an installation time.

Vehicle Fitment

Year Range: 2021-2026
Make: Ford
Model: F-150
Engine: 2.7L, 3.5L, or 5.0L
Additional Fitment: PowerBoost and non-hybrid models with factory dual tailpipes.
Exclusion: Does not fit models with the OEM active exhaust option.

For questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.