MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 5 in. x 11 in. x 22 in. Oval Straight-Through Performance Exhaust Muffler 12578

MagnaFlow 5 in. x 11 in. x 22 in. Oval Straight-Through Performance Exhaust - Main image
$139.5 $186 In stock

Category: Performance Exhaust

The MagnaFlow 5 X 11in. Oval Straight-Through Performance Exhaust Muffler 12578 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 12578s weight-optimized 5x11x22in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12578 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 (5.0 / 5 · 5 reviews)

Nicholas A. ★★★★★

Fit was perfect on my truck and the oval shape gave me just the clearance I needed underneath. The straight-through design really woke up the low-end torque without being obnoxiously loud.

Lily ★★★★★

I could immediately hear the difference after installation — it’s a deep, clean tone without being obnoxious. The oval shape fit perfectly in the stock hanger location, and the straight-through design gave a noticeable bump in throttle response.

Scarlett ★★★★★

Took about 20 minutes to swap out my stock muffler, and the straight-through design really wakes up the throttle response. The oval shape tucks up nicely under the frame without any rattling. I've put a few hundred miles on it and the tone stays aggressive but never drones on the highway.