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05-09 Ford Mustang 4.0L V6 Flowmaster 817510 Force II Cat-back Exhaust System

The Flowmaster 817510 Force II Cat-back Exhaust System upgrades the 2005-2009 Ford Mustang V6 with a true dual exhaust design, improved airflow, and a deep performance tone. Featuring stainless steel tubing, Scavenger Series X-pipe technology, and 60 Series Delta Flow mufflers, this system delivers durability, style, and enhanced driving enjoyment.

Top Features

  • True dual cat-back exhaust system designed for improved exhaust flow and performance.
  • Includes Scavenger Series X-pipe for enhanced scavenging and a unique exhaust tone.
  • Uses 60 Series Delta Flow chambered mufflers for a mild exterior sound with reduced interior noise.
  • Constructed with durable 409 stainless steel mandrel-bent tubing.
  • Includes polished 304 stainless steel dual exhaust tips for an upgraded appearance.
  • Designed for factory hanger locations with included hangers, clamps, and installation hardware.
  • Covered by Flowmaster's Lifetime Limited Warranty.
  • CARB compliant with Emission Code 5.

Vehicle Fitment

  • 2005 Ford Mustang V6 - 4.0L V6 Engine
  • 2006 Ford Mustang V6 - 4.0L V6 Engine
  • 2007 Ford Mustang V6 - 4.0L V6 Engine
  • 2008 Ford Mustang V6 - 4.0L V6 Engine
  • 2009 Ford Mustang V6 - 4.0L V6 Engine
Vendor: Flowmaster
SKU: FLO817510
Availability: 4 In Stock
$ 1,065.95 USD
On-Sale $ 1,065.95 USD
Normally $ 1,065.95 USD
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UPC: 700042025053
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Proposition65 Warning: Cancer and Reproductive Harm

Flowmaster 817510 Force II Cat-back Exhaust System

The Flowmaster Force II Cat-back Exhaust System is designed for 2005-2009 Ford Mustang V6 owners looking to upgrade from the factory exhaust with a true dual exhaust configuration, improved performance characteristics, and a refined muscle-car tone. This premium exhaust system features mandrel-bent 2.25-inch stainless steel tubing, an exclusive Scavenger Series X-pipe, and specially tuned 60 Series Delta Flow chambered mufflers to deliver a deep, unique exhaust note while maintaining a mild interior sound level for comfortable driving. The system connects after the factory catalytic converters and includes the necessary components for a complete cat-back conversion, including a template for modifying the rear bumper valance to accommodate the dual rear exit design.

Key Features

  • Designed specifically for 2005-2009 Ford Mustang models equipped with the 4.0L V6 engine.
  • True dual cat-back exhaust system for enhanced exhaust flow and an aggressive performance appearance.
  • Includes Flowmaster Scavenger Series X-pipe for improved exhaust scavenging and a distinctive tone.
  • Uses specially designed 60 Series Delta Flow chambered mufflers for balanced sound control.
  • Constructed with mandrel-bent 16-gauge stainless steel tubing for smooth airflow and durability.
  • Includes hangers, mounting brackets, clamps, and installation hardware for a direct-fit installation.
  • Features polished stainless steel exhaust tips for an upgraded rear-end appearance.
  • Uses factory hanger locations for easier installation and proper exhaust alignment.

Benefits

  • Provides improved throttle response, performance feel, and exhaust efficiency compared with the factory system.
  • Delivers a mild to moderate exterior exhaust tone with a comfortable interior sound level.
  • Creates the appearance and sound of a true dual exhaust setup for the Mustang V6 platform.
  • Reduces unwanted exhaust resonance while maintaining the classic Flowmaster performance sound.
  • Offers long-lasting durability with stainless steel components designed for performance applications.
  • Backed by Flowmaster's Lifetime Limited Warranty for added confidence and product support.

Product Specifications

  • Brand: Flowmaster
  • Part Number: 817510
  • Product Type: Cat-back Exhaust System
  • Exhaust Series: Force II
  • Vehicle Drive: 2WD
  • Engine Application: 4.0L V6
  • Material: 409 stainless steel tubing and muffler bodies
  • Tubing Diameter: 2.25 inches
  • Tubing Construction: Mandrel-bent 16-gauge stainless steel
  • Muffler Type: Chambered 60 Series Delta Flow
  • Muffler Quantity: Two
  • Muffler Body Dimensions: 13.50 inches long x 10.00 inches wide x 5.00 inches high
  • Muffler Finish: Black high-temperature paint finish
  • Exhaust Tip Material: 304 stainless steel
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Color: Silver
  • Exhaust Tip Size: 3.50-inch diameter
  • Exhaust Tip Quantity: Two
  • Exit Style: Dual rear exit
  • Sound Level: Mild
  • Clamping Type: Flat band clamps
  • Catalytic Converter Included: No
  • Emission Code: 5
  • CARB Compliant: Yes

Install Difficulty Level

This exhaust system is designed for an easy installation using factory hanger locations and included hardware. Most installations can be completed in under one hour when proper tools and equipment are available. The only additional modification required is a cutout in the rear bumper valance for the left-side exhaust tip, with a template included to help guide the process.

Vehicle Fitment

2005-2009 Ford Mustang with 4.0L V6 engine. This Flowmaster Force II Cat-back Exhaust System is designed for Mustang V6 models and connects after the factory catalytic converters.

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

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.
  • SCT Tuner Orders with the Prioritized Order option must have their tune forms submitted by 3PM EST to be completed the same day. Forms submitted after this time will be processed the next business day.
  • Orders will ship to the billing address listed on your order. If paying by credit or debit card, we can only ship to the billing address. Contact an MPT Expert for assistance if you need a different shipping address.

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.

HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.

Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.

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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