MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2005-2009 Ford Mustang 4.6L / 2007-2009 Ford Mustang Shelby GT500 5.4L Competition Series Cat-Back Performance Exhaust System 16674

MagnaFlow 2005-2009 Ford Mustang 4.6L / 2007-2009 Ford Mustang Shelby GT500 - Main image
$861.7 $1231 In stock

Category: Performance Exhaust

The MagnaFlow Ford Mustang Competition Series Cat-Back Performance Exhaust System brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we're so well known for. This exhaust kit is designed to enhance your 4.6L, 5.4L Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 3in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system's cat-back layout replaces your ride's exhaust system from near the catalytic converter on back. Exhaust system 16674 is engineered to make your vehicle's engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 16674's direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's limited lifetime warranty. Please check to ensure compliance with local noise regulations.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Ryan N. ★★★★★

Installation was straightforward with the included hardware and the tone is aggressive without being obnoxious at highway speeds. My Mustang GT finally sounds like it should have from the factory.

Eli V. ★★★★★

The sound is exactly what I wanted—deep and aggressive without being obnoxious on the highway. It really wakes up the V8 and gives the Mustang a whole new personality.

Amelia ★★★★★

The sound is exactly what I wanted—deep and aggressive without being obnoxious on the highway. Bolted on cleanly with the included hardware, and the tips fill the rear valance perfectly.