What is a straight-through muffler design?

A straight-through muffler has a perforated core that allows exhaust gases to flow directly through the muffler with minimal restriction. This design typically results in a deeper, louder exhaust note compared to chambered mufflers.

What materials is this MagnaFlow muffler made from?

This MagnaFlow muffler is constructed entirely from stainless steel. This material is chosen for its durability and resistance to corrosion, helping the muffler last longer.

Does this muffler come with installation hardware?

This product listing is for the MagnaFlow muffler itself. Installation hardware, such as clamps or hangers, is not included and will need to be sourced separately.

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Specifications

Brand: Magnaflow
Part #: 12771
UPC: 841380001412

MagnaFlow Muffler Mag SS 7X7 20 4.00/4.0

Name: MagnaFlow Muffler Mag SS 7X7 20 4.00/4.0
Brand: Magnaflow
SKU: magnaflow-magnaflow-muffler-mag-ss-7x7-20-4-00-4-0-t14-241522
Price: 198.68 USD
Availability: BackOrder

$198.68

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

MagnaFlow 12771 stainless steel straight-through muffler. Delivers a smooth, deep tone with a 7x7x20" body and 4" center inlet/outlet.

Key Features

This product is a MagnaFlow 12771 muffler.
It features a straight-through perforated stainless steel core for improved flow.
The muffler body is 7 inches by 7 inches by 20 inches.
It has 4-inch diameter inlet and outlet ports, both located in the center.
The muffler is constructed from 100% stainless steel for corrosion resistance.
It is designed to produce a smooth, deep exhaust tone.

This is a universal muffler and is not vehicle-specific. Professional installation is recommended to ensure proper fitment and integration into your exhaust system.

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About this part

Product Details

This MagnaFlow muffler is a straight-through design, meaning exhaust gases flow directly through the perforated core. You get a smooth, deep tone and a less restrictive path for your exhaust. The muffler body itself is a 7-inch by 7-inch oval, measuring 20 inches long, with 4-inch diameter inlet and outlet ports positioned in the center of each end. It's made entirely of stainless steel, so it's built to resist corrosion.

Because it's a universal muffler, it can be installed in either direction, giving you flexibility during setup. The stainless steel construction not only helps it last longer but also gives your exhaust system a clean, satin finish. MagnaFlow uses precision manufacturing for a well-built part that's designed to improve your exhaust sound and flow.

While this is a universal part, professional installation is recommended to ensure it's properly fitted and welded into your exhaust system. This muffler is a solid option if you're looking to change the sound of your exhaust and potentially gain a bit of performance through reduced backpressure.