15-20 Ford F-150 2.7L/3.5L EB V6 & 5.0L V8 Flowmaster 717871 Flow FX Cat-back Exhaust System

Flowmaster Flow FX Cat-Back Exhaust System - Part #717871

Upgrade the performance, sound, and appearance of a 2015-2020 Ford F-150 with the Flowmaster Flow FX Cat-Back Exhaust System. Designed for enthusiasts seeking increased exhaust flow and a deep, aggressive performance tone without excessive cabin drone, this premium cat-back system delivers an ideal balance of power, sound, and everyday drivability. Manufactured from durable 409 stainless steel with mandrel-bent tubing, the system features a straight-through Flow FX performance muffler for improved exhaust efficiency and maximum flow. Dual side-exit tailpipes with large black ceramic-coated stainless steel tips provide an aggressive custom appearance while directing exhaust away from trailers during towing. The system utilizes factory mounting locations, includes all necessary hardware, and clears the factory spare tire for a straightforward installation. Compatible with both 2WD and 4WD models, this exhaust system is backed by Flowmaster's Lifetime Limited Warranty for long-lasting confidence. 

Key Features

• Premium Flow FX cat-back performance exhaust system.
• Durable 409 stainless steel tubing for long service life.
• Flow FX straight-through absorption-style performance muffler.
• 3.00-inch muffler inlet with dual 2.50-inch mandrel-bent tailpipes.
• Dual side-exit exhaust design exits behind the rear wheels.
• Large 4.50-inch black ceramic-coated 304 stainless steel exhaust tips.
• Produces an aggressive to moderate performance exhaust tone.
• Uses existing factory hanger locations with additional hanger included.
• Clears the factory spare tire.
• Complete installation hardware and clamps included.
• Fits both 2WD and 4WD applications.
• Lifetime Limited Warranty.

Benefits

• Improves exhaust flow for enhanced engine performance and throttle response.
• Delivers a deep, powerful Flow FX exhaust note inside and outside the vehicle.
• Adds an aggressive custom appearance with black ceramic-coated exhaust tips.
• Directs exhaust away from boats and travel trailers while towing.
• Factory-style mounting locations help simplify installation.
• Full stainless steel construction provides excellent durability and corrosion resistance.
• Designed to fit without interfering with the factory spare tire.
• Backed by Flowmaster's Lifetime Limited Warranty for lasting peace of mind.

Product Specifications

• Part Number: 717871
• Product Type: Cat-Back Exhaust System
• Brand: Flowmaster
• Exhaust Series: Flow FX
• Sound Level: Aggressive / Moderate
• Material: 409 Stainless Steel piping and muffler
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Finish: Black Ceramic Coated
• Exhaust Tip Color: Black
• Exhaust Tip Diameter: 4.50 inches
• Exhaust Tip Length: 11.00 inches
• Exhaust Tip Style: Round, Rolled Edge, Single Wall
• Tip Quantity: 2
• Main Pipe Diameter: 2.50 inches
• Muffler Inlet Diameter: 3.00 inches
• Muffler Type: Straight-Through Absorption
• Muffler Body Material: 409 Stainless Steel
• Muffler Dimensions: 18.00 in. L x 9.00 in. W x 4.00 in. H
• Overall Muffler Length: 24.00 inches
• Exit Style: Dual Side Exit
• Clamps Included: Yes
• Hangers Included: Yes
• Mounting Style: Uses Factory Hangers
• Catalytic Converter Included: No
• Finish: Natural Stainless Steel
• California Proposition 65: Yes

Install Difficulty Level

Easy. This direct-fit cat-back exhaust system is engineered to utilize the factory hanger locations and includes all required clamps, hardware, and installation instructions. With basic hand tools and proper lifting equipment, installation can be completed in as little as 1 hour, making it an excellent upgrade for experienced DIY installers or professional technicians. :contentReference[oaicite:0]{index=0}

Vehicle Fitment

Ford F-150 (2015-2020)

• 2.7L EcoBoost V6
• 3.3L V6
• 3.5L EcoBoost V6
• 3.5L Ti-VCT V6
• 5.0L V8
• Fits 2WD and 4WD models.
• Fits all wheelbases except Standard Cab with Short Bed.
• Does not fit Ford F-150 Raptor models.

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