Skip to Product Info
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    • Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster
    New!

    Flowmaster Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster 717877

    Vendor: Flowmaster
    SKU: BDXN_717877
    Regular Price $614.95
    Free Shipping on Orders Over $99
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
    Payment & Security

    Payments are processed through secure, encrypted systems. Your credit card details are never stored or accessible by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa

    Flowmaster introduces our Flow FX stainless steel axle-back exhaust system for the 2011-2014 Ford Mustang with the 3.7-liter engine. This system uses a Flow FX series muffler for a moderate to mild sound level and increased performance.

    Mandrel bent 2.5-inch 409 stainless steel tubing allows for maximum exhaust flow and durability. The system uses larger 4.00-inch black ceramic-coated stainless steel tips for a custom look. Max dyno gains of 7 hp and 6 lb-ft at the rear wheels over stock. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

    • FlowFX Series performance mufflers offers a moderate to mild sound level and increased performance
    • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
    • Max dyno gains of 7 hp and 6 lb-ft at the rear wheels
    • 2.50-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
    • Includes all necessary hardware for an at home installation
    • 4.00-inch black ceramic-coated stainless steel tips add a custom look to the vehicle
    • Uses factory hanger locations for easy installation
    • Lifetime Limited Warranty


    Flowmaster Flow Fx Axle-Back Exhaust System Fits 2011-2014 Ford Mustang 3.7-Liter, Flow Fx Axle-Back 2.5-Inch Stainless Steel Exhaust System, 4.0-Inch Black Ceramic Tips, Dual Out Rear Exit Flowmaster 717877


    Specifications:

    Country of Origin USA
    Sold As Kit
    UPC 090127129319
    Availability Available
    Exhaust Type Axle Back
    Exit Style Dual Out Rear
    Mount Style Clamp-On
    Shape Round


    This Part Fits:

    Year Make Model Submodel Notes
    2011 Ford Mustang
    2012 Ford Mustang
    2013 Ford Mustang
    2014 Ford Mustang
    2012 Ford Mustang ST
    2014 Ford Mustang ST
    Shipping Policy

    Cancellations

    Once an order is placed, in most cases it cannot be cancelled as they are sent for fulfillment almost immediately after receiving the order. If there is an ability to cancel the order, the buyer is responsible for the transaction fees charged from the transaction.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise stated on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated based on the shipping method selected, the weight and dimensions of the package, and the destination address. You can view the shipping costs for your order during the checkout process before finalizing your purchase.

    Tracking Information

    Once your order has been shipped, you will receive a shipping confirmation email with tracking information. You can use this information to track the status of your package and monitor its delivery progress.

    Delivery Time

    While we make every effort to ensure timely delivery, please note that delivery times may vary due to factors beyond our control, such as weather conditions or carrier delays.

    International Shipping

    For international orders, please be aware that customs duties, taxes, and other fees may apply upon delivery. These additional charges are the responsibility of the recipient and are not included in the shipping cost paid at checkout. Please check with your local customs office for information on potential fees before placing your order.

    Shipping Address

    Please ensure that the shipping address provided during checkout is accurate and complete. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Return Policy

    Return Period

    You have up to 30 days from the date of purchase to return eligible items.

    Condition of the Item

    A 20% restocking fee will apply to cover inspection, processing, and repackaging costs.

    Items must be returned in new, unused condition and include all original packaging, hardware, and documentation.

    Return Shipping

    The cost of return shipping is the responsibility of the buyer unless the item was received damaged, defective, or incorrect.

    Return Authorization

    Before returning any item, please contact our customer service team to obtain a Return Merchandise Authorization (RMA) number. Items returned without an RMA may not be accepted.

    Refund Processing

    Once the returned item is received and inspected, we will initiate the refund process. Please allow 2–5 days for the refund to be processed and credited to the original payment method. Bank processing times may vary.

    Damaged or Defective Items

    If you receive a damaged, defective, or incorrect item, contact us immediately for assistance. We’ll work quickly to resolve the issue or send a replacement.

    Final Sale Items

    Certain items may be marked as Final Sale and are not eligible for return or exchange. These will be clearly noted on the product page.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed