MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust Muffler 11239

MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust - Main image
MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust - View 2MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust - View 3MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust - View 4MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust - View 5
$105.79 $149 In stock

Category: Performance Exhaust

The MagnaFlow 4 x 9in. Oval Straight-Through Performance Exhaust Muffler 11239 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/3in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11239s weight-optimized 4x9x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11239 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.

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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)

Aurora I. ★★★★★

The deep, mellow tone at idle is exactly what I was hoping for, and it really woke up the low-end torque on my truck. The straight-through design makes installation straightforward, and the polished stainless steel looks great.

Andrew ★★★★★

Installed this on my Silverado and immediately noticed the dyno-proven performance gain they advertise—throttle response feels snappier. The straight-through design gives it a clean, aggressive tone at highway speeds without any annoying drone.

Natalie C. ★★★★★

The sound is deep without being obnoxious inside the cabin, and the straight-through design really woke up my truck's throttle response. Installation was straightforward with the 4-inch oval body fitting perfectly in the stock location.

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