Magnaflow 12259 SS Muffler 5x8 Oval 2.5" Universal Performance

Vehicle Fitment

• Universal fit - designed for custom and performance exhaust systems; not vehicle-specific

Features

• 5" x 8" oval stainless steel performance muffler body
• 2.5" inlet and 2.5" outlet diameter for use with common exhaust piping
• Straight-through perforated core promotes free-flowing exhaust
• Acoustic packing and stainless mesh deliver deep, smooth Magnaflow tone
• Durable 100% stainless steel construction resists corrosion and high temperatures
• Reversible/bi-directional design for flexible installation orientation
• Enhances exhaust flow and sound compared to many OEM units
• Ideal for performance upgrades, custom exhaust systems, or replacement applications

Specifications

• Part Number: Magnaflow 12259
• Type: Performance straight-through muffler
• Body Shape: Oval
• Body Dimensions: 5" height x 8" width
• Inlet Diameter: 2.5"
• Outlet Diameter: 2.5"
• Material: Stainless steel (SS)
• Core: Straight-through perforated design
• Installation: Universal - weld-on or clamp-on required

Included Components

• 1x Magnaflow 5x8 stainless steel performance muffler (12259)

Product Description

The Magnaflow 12259 universal performance muffler is engineered to enhance exhaust flow while delivering the deep, smooth tone that Magnaflow is known for. Its 5" x 8" stainless steel oval body with a straight-through perforated core allows exhaust gases to pass freely with reduced backpressure, improving exhaust dynamics compared to many restrictive factory mufflers.

Designed with 2.5" inlet and outlet diameters, the 12259 integrates easily with common 2.5" exhaust piping found in performance upgrades and custom systems. The durable stainless steel construction resists corrosion and high heat for long-lasting service life, while the reversible, bi-directional design offers flexible installation orientation. Ideal for performance builds, custom exhaust layouts, or replacing restrictive OEM mufflers, this universal unit requires professional installation (weld-on or clamp-on) to ensure proper fit and optimal function.