What are the exact dimensions of this Magnaflow muffler?

The muffler body measures 3.5 inches in diameter and 12 inches in length. The overall length, including the pipes, is 16 inches. The inlet and outlet ports are both 1.75 inches in diameter.

What material is the Magnaflow 18113 muffler made from?

This muffler is constructed from aluminized steel, which is chosen for its resistance to corrosion and longer service life.

Does this muffler come with installation hardware?

This muffler is designed for universal fitment and typically requires custom exhaust work, including welding. Hardware is not usually included, and professional installation is recommended.

Magnaflow Glasspack Muffler 18113 - Universal Fit

Name: MagnaFlow Muff GP 3.5in Dia 16in Overall Length 1.75in Inlet / 1.75in Outlet
Brand: Magnaflow
SKU: magnaflow-magnaflow-muff-gp-3-5in-dia-16in-overall-length-1-75in-inlet-1-75in-ou-t14-371841
Price: 48.40 USD
Availability: BackOrder

MagnaFlow Muff GP 3.5in Dia 16in Overall Length 1.75in Inlet / 1.75in Outlet

$48.40

On Backorder

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

MagnaFlow 18113 glasspack muffler. Delivers a deep, classic sound with a free-flowing, straight-through design.

Key Features

Fits vehicles with 1.75 inch inlet and outlet exhaust systems.
Features a straight-through performance design for improved exhaust flow.
Constructed with an anti-corrosive aluminized steel body for durability.
Offers a deep, classic glasspack muffler sound.
Universal design provides installation flexibility.
Dyno-proven performance gains.

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Product Details

Magnaflow is well-known for creating exhaust components that offer a distinct sound and improved flow. This glasspack muffler, part number 18113, is a prime example, designed to give your ride that deep, classic exhaust note that glasspacks are famous for. It features a straight-through design that lets exhaust gases flow freely, which can help your engine breathe a little easier.

The muffler body itself is a 3.5-inch round unit, measuring 12 inches long for the body and 16 inches overall, with 1.75-inch inlet and outlet ports. It's constructed from aluminized steel, which helps resist corrosion, and uses a single-stage packing for that signature sound. Magnaflow uses CNC precision robotic manufacturing for consistent results, and while this is a universal muffler, professional installation is recommended to ensure it's properly fitted and welded.

This muffler is built for volume and performance, so be sure to check local noise regulations before installing. It's a solid option if you're looking to change up the sound of your exhaust system.