MagnaFlow Muffler 12259 – 76mm (3") 5" x 8" Oval Straight-Through

MagnaFlow 12259 straight-through performance muffler is engineered to improve exhaust flow while maintaining a smooth, deep exhaust tone. The perforated stainless steel core is wrapped in stainless mesh and premium acoustic fibre packing to reduce backpressure while delivering refined sound control.

Manufactured from 100% stainless steel, the satin-finish oval body measures 127mm x 200mm x 450mm (5" x 8" x 18"). The universal 76mm (3.00") offset/centre inlet and outlet configuration is bi-directional (reversible), allowing flexible installation in custom exhaust systems.

Key Features

• High-flow straight-through perforated stainless steel core
• Smooth, deep exhaust tone
• Centre / Centre inlet and outlet layout
• Bi-directional (reversible) design
• Universal fit for custom fabrication

Construction

• 100% stainless steel construction
• Perforated core with stainless mesh wrap
• Acoustic fibre packing for refined sound control
• Precision robotic welding for consistent quality

Specifications

• Inlet / Outlet: 76mm (3") / 76mm (3")
• Inlet / Outlet Position: Offset / Centre
• Body Profile: 127mm x 200mm (5" x 8") Oval
• Body Length: 450mm (18")
• Overall Length: Approx. 510mm (20")

What’s Included

• 1 x MagnaFlow 12259 Stainless Steel Muffler

Recommended With

• Exhaust clamps [see product code "Clamp 76mm"]
• Matching 76mm (3") exhaust pipe [see product code "ST076"]
• Mandrel bends [see product code "SB300"]
• Exhaust hangers [see product code "Hanger"]

Warranty & Compliance

• Backed by MagnaFlow limited lifetime construction warranty

Customer Support

For phone orders, advice, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

🇦🇺 Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983