MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2005-2009 Ford Mustang 4.0L Street Series Axle Back Performance Exhaust System 15889

MagnaFlow 2005-2009 Ford Mustang 4.0L Street Series Axle Back Performance - Main image
$387.1 $553 In stock

Category: Performance Exhaust

The MagnaFlow Ford Mustang Street Series Axle-Back Performance Exhaust System brings enhanced engine sound and dyno-proven performance to your 4.0L Ford Mustang with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Ford Mustang exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features an axle-back layout designed to replace your Ford Mustang's exhaust system from near the rear axle on back. With its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Single Straight Passenger Side Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, your ride will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15889 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1-year limited finish warranty and limited lifetime construction warranty.

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Standard 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 (5.0 / 5 · 5 reviews)

Michael S. ★★★★★

Swapped out the stock exhaust on my 4.0L Mustang and the difference is immediate—the deep, aggressive note at startup is exactly what I was hoping for. No drone on the highway, just a solid rumble that makes the car feel faster. Installation was straightforward and the welds look clean.

James ★★★★★

The deep, mellow rumble at idle is exactly what I was hoping for, and it really wakes up when you hit the gas on the 4.0L — makes my Mustang feel more aggressive without being obnoxious.

Leo ★★★★★

I was a little worried installation would be tricky, but everything lined up perfectly with the stock hangers and took under an hour. The exhaust note has a nice aggressive bark when you step on it without being obnoxious on the highway.