MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 4 in. x 9 in. x 11 in. Oval Straight-Through Performance Exhaust Muffler 11379

MagnaFlow 4 in. x 9 in. x 11 in. Oval Straight-Through Performance Exhaust - Main image
$105.4 $170 In stock

Category: Performance Exhaust

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11379 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 2.5/2.5in. 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 11379s weight-optimized 4x9x11in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11379 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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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)

Zoe I. ★★★★★

Installed it this weekend and the straight-through design gave my truck a deep, aggressive tone without being obnoxious on the highway. Noticed a small but real improvement in throttle response on the dyno.

Hazel ★★★★★

I've been running this muffler for about two weeks now, and the weld quality on the oval body looks fantastic—no rattles or issues at all. The straight-through design really woke up the mid-range on my truck without being too loud at highway speeds.

Eva G. ★★★★★

Swapped out my old chambered muffler for this straight-through design and the difference is night and day – the exhaust note is deeper and honestly, the drone at highway speeds is way less than I expected. It bolted up without any drama and the 4x9 oval body clears my driveshaft with plenty of room