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Flowmaster

Flow FX Axle-Back Exhaust System with Black Tips

$584.95 $505.95 Save $79.00

SKU: 700042039357

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flowmaster Flow FX is an axle-back exhaust system designed for 2005-2010 Ford Mustangs with 4.6L or 5.4L engines. It features dual 3.00-inch mandrel-bent stainless steel tubing and Flow FX straight-through mufflers constructed from bright 409S stainless steel.

This system aims to provide moderate exterior and interior sound levels while delivering performance benefits. It includes large 4.50-inch black ceramic coated stainless steel tips that fit the factory exhaust cutouts. The muffler utilizes factory hanger locations for straightforward installation.
Show original supplier description
The Flowmaster Flow FX Axle-back exhaust system is engineered for 2005-2010 Ford Mustang GT, Shelby GT, GT500, California Special, and Bullitt models equipped with the 4.6L or 5.4L engines. This system features dual 3.00-inch mandrel-bent 409S stainless steel tubing leading to a pair of compact, round Flow FX straight-through performance mufflers. These mufflers boast a large 3.00-inch core designed to maximize performance and produce a deep, aggressive sound. The exterior of the system is enhanced with dual 4.50-inch black ceramic coated stainless steel tips, which are designed to fill the factory exhaust cutouts in the lower valance. The mufflers are constructed from durable 409S stainless steel for longevity and a brushed finish. Flowmaster backs this exhaust system with a Lifetime Limited Warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFlowmaster
Part Number700042039357
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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