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21-26 Ford F-150 2.7L/3.5L/5.0L Flowmaster 718117 Flow FX Extreme Cat-Back Exhaust System

Upgrade the 2021-2026 Ford F-150 with the Flowmaster Flow FX Extreme Cat-Back Exhaust System. Featuring durable 409 stainless steel construction, dyno-proven gains of up to 12 HP and 13 lb-ft of torque, and an aggressive exhaust tone, this direct-fit system improves performance, off-road ground clearance, and long-term durability while retaining factory-style installation.

Top Features

  • Flowmaster Part #718117
  • Aggressive Flow FX performance muffler
  • Up to 12 HP and 13 lb-ft torque gains
  • 3.0-inch mandrel-bent 409 stainless steel tubing
  • Dump-style exit for improved ground clearance
  • Direct-fit installation using factory hanger locations
  • Includes all required installation hardware
  • Corrosion-resistant natural finish
  • Fits 2WD and 4WD models
  • Backed by Flowmaster's Lifetime Limited Warranty

Vehicle Fitment

  • 2021-2026 Ford F-150 2.7L EcoBoost V6
  • 2021-2026 Ford F-150 3.5L EcoBoost V6
  • 2021-2026 Ford F-150 3.5L Ti-VCT V6
  • 2021-2026 Ford F-150 5.0L V8
  • Fits 2WD and 4WD models
  • Excludes Regular Cab/Short Bed (122-inch wheelbase)
  • Excludes Hybrid PowerBoost models
  • Excludes factory Active Exhaust-equipped models
Vendor: Flowmaster
SKU: FLO718117
Availability: 9 In Stock
$ 531.95 USD
On-Sale $ 531.95 USD
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UPC: 090127129999
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Proposition65 Warning: Cancer and Reproductive Harm

Flowmaster Flow FX Extreme Cat-Back Exhaust System for 2021-2026 Ford F-150 2.7L/3.5L/5.0L - Part #718117

The Flowmaster Flow FX Extreme Cat-Back Exhaust System (Part #718117) is engineered for truck owners who want an aggressive exhaust tone, improved performance, and enhanced off-road capability without compromising durability. Designed specifically for 2021-2026 Ford F-150 models equipped with the 2.7L EcoBoost, 3.5L EcoBoost, 3.5L Ti-VCT, or 5.0L V8 engines, this premium exhaust system features mandrel-bent 3.0-inch 16-gauge 409 stainless steel tubing and a high-performance Flow FX absorption muffler to maximize exhaust flow. Dyno-tested gains of up to 12 horsepower and 13 lb-ft of rear-wheel torque help improve throttle response and overall driving enjoyment. The innovative dump-style exit eliminates the over-axle tailpipe, providing increased ground clearance and a better departure angle for demanding off-road adventures. Using factory mounting locations and including all required installation hardware, this system delivers a straightforward upgrade backed by Flowmaster's Lifetime Limited Warranty.

Key Features

  • Designed specifically for 2021-2026 Ford F-150 trucks with 2.7L EcoBoost, 3.5L EcoBoost, 3.5L Ti-VCT, and 5.0L V8 engines.
  • Flow FX performance absorption muffler delivers an aggressive, deep exhaust tone.
  • Dyno-proven gains of up to 12 horsepower and 13 lb-ft of rear-wheel torque.
  • Mandrel-bent 3.0-inch 16-gauge 409 stainless steel tubing promotes maximum exhaust flow.
  • Dump-style exit improves ground clearance and departure angle for off-road driving.
  • Constructed from corrosion-resistant 409 stainless steel for long-lasting durability.
  • Utilizes factory hanger locations for a direct-fit installation.
  • Includes all necessary clamps and installation hardware.
  • Slip-fit connections simplify assembly.
  • Engineered for both 2WD and 4WD applications.

Benefits

  • Produces a powerful, aggressive exhaust note that enhances the driving experience.
  • Improves exhaust flow for better horsepower, torque, and throttle response.
  • Provides increased underbody clearance by eliminating the factory over-axle tailpipe.
  • Built to withstand harsh weather and demanding driving conditions with premium stainless steel construction.
  • Direct-fit design minimizes installation time without requiring extensive modifications.
  • Ideal for daily-driven trucks, performance builds, and off-road applications.
  • Backed by Flowmaster's Lifetime Limited Warranty for long-term confidence and peace of mind.

Product Specifications

  • Part Number: 718117
  • Product Type: Cat-Back Exhaust System
  • Exhaust Series: Flow FX Extreme
  • Sound Level: Aggressive
  • Main Tubing Diameter: 3.00 inches
  • Tubing Material: 16-Gauge 409 Stainless Steel
  • Muffler Series: Flow FX
  • Muffler Type: Absorption
  • Muffler Material: 409 Stainless Steel
  • Muffler Body Diameter: 6.00 inches
  • Muffler Body Length: 14.00 inches
  • Muffler Overall Length: 44.30 inches
  • Muffler Inlet Diameter: 3.00 inches
  • Muffler Outlet Diameter: 3.00 inches
  • Exit Style: Single Out Dump
  • Finish: Natural
  • Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Clamps Included: Yes
  • Hangers Included: Yes
  • Mounting Style: Uses Factory Hanger Locations
  • Catalytic Converter Included: No
  • Exhaust Tip: None (Dump Exit Configuration)
  • California Proposition 65: Yes

Install Difficulty Level

Easy. This direct-fit cat-back exhaust system installs using the factory mounting locations and includes all necessary hardware for installation. Basic hand tools and light mechanical experience are typically all that is required. Under ideal shop conditions, installation can be completed in as little as 2 hours, making it an excellent upgrade for enthusiasts looking to improve both performance and sound with minimal downtime.

Vehicle Fitment

Fits the following vehicles:

  • 2021-2026 Ford F-150 2.7L EcoBoost V6
  • 2021-2026 Ford F-150 3.5L EcoBoost V6
  • 2021-2026 Ford F-150 3.5L Ti-VCT V6
  • 2021-2026 Ford F-150 5.0L V8
  • Fits both 2-wheel drive and 4-wheel drive models.
  • Does not fit Regular Cab/Short Bed (122-inch wheelbase) models.
  • Does not fit Hybrid PowerBoost models.
  • Does not fit vehicles equipped with the factory OEM Active Exhaust option.

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

Shipping Policy

MPT is proud to offer free shipping on most orders over $149.

  • Free shipping applies only to the contiguous United States. Shipping and handling charges will apply to orders outside the contiguous US, and the buyer is responsible for any duty fees or taxes their home country may charge to import goods.
  • With free shipping, we will choose the best shipping method for your order. We use all major carriers, including USPS, FedEx, UPS, and DHL.

Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
  • We do not process orders on weekends or observed holidays, which do not count as business days.
  • Physical items that are in stock at MPT and ordered by 4PM EST will be shipped the same day. Orders placed after 4PM EST will be processed on the following business day.

Special Considerations:

  • Items not stocked at our location will follow the same processing times but may experience lead-time delays and could incur additional charges. Shipping methods may vary for these items based on what was paid and the requested delivery speed. If you need an item by a specific deadline, please contact an MPT Expert.
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MPT Performance Returns and Refund Policy

A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.

MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.

Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.

For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.

The customer is responsible for all shipping charges incurred during the return process.

Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.

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nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.

MPT Decals are Non-Refundable, once they have been received by the customer.

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