09-10 Ford F-150 4.6L & 5.4L / 11-14 Ford F-150 5.0L V8 Flowmaster 817691 Outlaw Cat-back Exhaust System

Flowmaster Outlaw Cat-Back Exhaust System – Part #817691

The Flowmaster Outlaw Cat-Back Exhaust System (Part #817691) is engineered for 2009-2014 Ford F-150 trucks equipped with 4.6L, 5.0L, or 5.4L V8 engines. Designed for truck owners seeking maximum exhaust tone without sacrificing performance, this premium bolt-on exhaust system delivers Flowmaster's signature super aggressive sound while improving exhaust flow for enhanced throttle response. Featuring mandrel-bent stainless steel tubing, a high-flow Super 10 Series chambered muffler, and dual 3.00-inch tailpipes with striking 4.00-inch black ceramic-coated double-wall stainless steel tips, this system transforms both the appearance and sound of the truck. Built for long-lasting durability and engineered for a precise factory-style fit, the system includes all required hardware for a straightforward installation and is backed by Flowmaster's Lifetime Limited Warranty.

Key Features

• Flowmaster Outlaw Series cat-back exhaust system
• Part Number: 817691
• Super aggressive exhaust tone with Super 10 Series chambered muffler
• Mandrel-bent 409 stainless steel tubing for maximum exhaust flow
• Dual 3.00-inch mandrel-bent tailpipes
• Large 4.00-inch black ceramic-coated double-wall 304 stainless steel exhaust tips
• Dual exit configuration with Dual Out Rear or Dual Out Side tailpipe options
• Bolt-on installation with no welding required under normal installation
• Includes clamps, hangers, mounting brackets, and installation hardware
• Fits both 2WD and 4WD models across all wheelbases
• Constructed from corrosion-resistant stainless steel for long service life
• Emission-legal cat-back design that retains the factory catalytic converters

Benefits

• Produces an unmistakable muscle truck exhaust note with maximum sound levels inside and outside the vehicle.
• Improves exhaust flow to help support horsepower, torque, and throttle response.
• Enhances the truck's appearance with premium black ceramic-coated stainless steel exhaust tips.
• Precision-engineered for an excellent fit that minimizes installation time.
• Durable stainless steel construction resists corrosion and withstands harsh driving conditions.
• Maintains factory emissions equipment since the catalytic converters remain in place.
• Backed by Flowmaster's Lifetime Limited Warranty for long-term confidence and peace of mind.
  

Product Specifications

• Brand: Flowmaster
• Part Number: 817691
• Product Type: Cat-Back Exhaust System
• Series: Outlaw
• Sound Level: Super Aggressive
• Material: 409 Stainless Steel tubing and muffler body
• Exhaust Tip Material: 304 Stainless Steel
• Pipe Finish: Natural Silver
• Muffler Finish: Black High-Temperature Paint
• Exhaust Tip Finish: Black Ceramic Coating
• Main Pipe Diameter: 3.00 inches
• Tailpipe Diameter: 3.00 inches
• Exhaust Tip Diameter: 4.00 inches
• Exhaust Tip Length: 13.00 inches
• Exhaust Tip Shape: Round, Double Wall, Angle Cut
• Muffler Series: Super 10 Series
• Muffler Type: Chambered
• Muffler Body Shape: Oval
• Muffler Body Dimensions: 6.50 in. Length x 9.50 in. Width x 4.00 in. Height
• Exit Style: Dual Out Rear or Dual Out Side
• Inlet Diameter: 3.00 inches
• Inlet Type: Flanged
• Clamps Included: Yes
• Hangers Included: Yes
• Mounting Brackets Included: Yes
• Catalytic Converter Included: No
• Color: Silver tubing with black ceramic-coated exhaust tips

Install Difficulty Level

Easy. This direct bolt-on exhaust system is designed to reuse the factory mounting locations and includes all necessary hardware for installation. Basic hand tools are typically all that are required, making it an excellent upgrade for most home mechanics. Under ideal conditions, installation can be completed in as little as 1 hour, allowing the truck to quickly benefit from improved performance and an unmistakable Flowmaster exhaust tone.

Vehicle Fitment

Fits the following vehicles:

• 2009-2010 Ford F-150 – 4.6L V8
• 2009-2010 Ford F-150 – 5.4L V8
• 2011-2014 Ford F-150 – 5.0L V8
• Fits both 2-wheel drive (2WD) and 4-wheel drive (4WD) models
• Compatible with all wheelbase configurations

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