What is the main benefit of a straight-through muffler design?

A straight-through muffler design allows exhaust gases to flow more freely through a perforated core. This generally results in a smoother, deeper exhaust tone and can improve exhaust flow compared to chambered mufflers.

What materials is this MagnaFlow muffler made from?

This MagnaFlow muffler is constructed entirely from stainless steel, including the perforated core, mesh wrap, and outer casing. This material choice helps resist corrosion and ensures durability.

Does this muffler come with any installation hardware?

The manufacturer's description does not specify if installation hardware is included. Professional installation is recommended, and your installer can advise on any necessary clamps or hangers.

Magnaflow Muffler 11X4X9 2.25 D/D 11378

Name: MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Brand: Magnaflow
SKU: magnaflow-magnaflow-muffler-mag-ss-11x4x9-2-25-d-d-t14-241248
Price: 163.65 USD
Availability: InStock

MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D

$163.65

Only 8 left in stock

MagnaFlow 11378 muffler. Features a straight-through design for a deep tone and universal 2.25in. inlet/outlet.

Key Features

This product is a MagnaFlow 11378 muffler.
It features a straight-through perforated stainless steel core for improved flow.
The muffler body measures 4 x 9 x 11 inches.
It has a 2.25-inch inlet and a 2.25-inch outlet on each side (dual/dual configuration).
Constructed from 100% stainless steel for corrosion resistance.
Produces a smooth, deep exhaust tone.

This is a universal muffler and is not vehicle-specific. Professional installation is highly recommended to ensure proper fitment with your vehicle's exhaust system.

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Product Details

This MagnaFlow 11378 muffler is a straight-through design, meaning exhaust gases flow directly through the perforated core. You get a smooth, deep tone from this setup, and it's made entirely of stainless steel for good corrosion resistance. The muffler body is 4 inches tall, 9 inches wide, and 11 inches long, with a 2.25-inch inlet and a 2.25-inch outlet on each side, making it a dual-in/dual-out configuration. Because it's reversible and universal, it can be installed in various orientations to fit your specific exhaust system.

The straight-through perforated core, wrapped in stainless steel mesh and acoustic fiber fill, is designed to improve exhaust flow compared to stock mufflers. This can lead to a noticeable change in your vehicle's sound and potentially a slight improvement in performance. The satin finish on the stainless steel body also adds a clean look to your exhaust system. MagnaFlow uses precision robotic manufacturing for these mufflers, ensuring a well-built product.

Since this is a universal muffler, professional installation is highly recommended to ensure it's properly fitted and welded into your existing exhaust system. This muffler is built from durable stainless steel, and MagnaFlow backs it with a limited lifetime construction warranty.