MagnaFlow Muffler 12256 2.5" Centre Offset 5" x 8" Oval Stainless
$415.80
Tax included
MagnaFlow Muffler 12256 – 2.5" Centre Offset 5" x 8" Oval Stainless Steel
MagnaFlow 12256 universal performance muffler features a 63mm (2.50") inlet and outlet with a large 127mm x 200mm x 450mm (5" x 8" x 18") oval body. Its straight-through free-flow design provides excellent exhaust flow while producing the smooth, deep performance exhaust note MagnaFlow is known for.
Manufactured from 100% stainless steel, the 12256 uses a straight-through perforated core with acoustic packing to provide effective sound control without unnecessarily restricting exhaust flow. The centre / offset configuration is ideal for a wide range of custom and performance 2.5" exhaust systems.
Best Mufflers provides expert advice and fast shipping Australia-wide.
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MagnaFlow Muffler 12256 – 2.5" Centre Offset 5" x 8" Oval Stainless Steel
MagnaFlow 12256 straight-through performance muffler is designed for high-flow exhaust applications requiring a 63mm (2.50") inlet and outlet combined with effective exhaust sound control.
The large 127mm x 200mm x 450mm (5" x 8" x 18") oval body provides substantial internal volume for sound absorption while the straight-through perforated core maintains excellent exhaust flow. This combination helps produce MagnaFlow's characteristic smooth, deep exhaust tone without the restriction associated with conventional chambered muffler designs.
Key Features
- Genuine MagnaFlow performance muffler
- 63mm (2.50") inlet and outlet
- Centre / offset configuration
- 127mm x 200mm (5" x 8") oval body
- 450mm (18") body length
- Straight-through free-flow design
- Designed for excellent exhaust flow with effective sound control
- Smooth, deep performance exhaust tone
- Universal fit for custom exhaust fabrication
Construction
- 100% stainless steel construction
- Straight-through perforated stainless steel core
- Stainless steel mesh wrap
- Acoustic fibre packing for refined sound control
- Precision welded construction
- Premium satin finish
- Designed for durability and corrosion resistance
Muffler Specifications
- Part Number: 12256
- Brand: MagnaFlow
- Application: Universal
- Inlet Size: 63mm (2.50")
- Outlet Size: 63mm (2.50")
- Inlet / Outlet Position: Centre / Offset
- Body Profile: 127mm x 200mm (5" x 8") Oval
- Body Length: 450mm (18")
- Overall Length: Approx. 610mm (24")
- Material: Stainless Steel
- Finish: Satin
- Design: Straight-Through / Free Flow
Exhaust Sound & Performance
The straight-through perforated core allows exhaust gases to pass through the muffler with minimal unnecessary restriction. The large 18" oval body provides substantial internal volume for acoustic packing, helping control exhaust volume while retaining a deep performance exhaust note.
Final exhaust sound and volume will vary depending on engine capacity, engine modifications, catalytic converters, resonators, exhaust pipe diameter and the remainder of the exhaust system.
Fitment Notes
MagnaFlow 12256 is a universal muffler and is not a vehicle-specific direct-fit component.
- Designed for exhaust systems using 63mm (2.50") pipework
- Welding and exhaust fabrication will normally be required
- Confirm available underbody space before ordering
- Check body and overall dimensions for adequate vehicle clearance
- Allow sufficient clearance from the vehicle body, suspension, fuel system and other heat-sensitive components
Professional installation by an experienced exhaust workshop is recommended.
What's Included
- 1 x MagnaFlow 12256 Stainless Steel Performance Muffler
Recommended With
- 63mm (2.50") Exhaust Pipe: See product code "ST063"
- 63mm Exhaust Clamps: Available separately
- 2.50" Mandrel Bends: See product code "SB250"
- Exhaust hangers and mounting hardware
Warranty & Compliance
MagnaFlow mufflers supplied by Best Mufflers are sourced through the official Australian MagnaFlow distribution network and are supplied with the applicable manufacturer's warranty.
MagnaFlow stainless steel mufflers are backed by MagnaFlow's applicable limited lifetime construction warranty, subject to manufacturer terms and conditions.
FAQ
What size exhaust pipe does MagnaFlow 12256 suit?
The 12256 has a 63mm (2.50") inlet and outlet and is designed for 2.5" exhaust systems.
What size is the muffler body?
The muffler has a 127mm x 200mm (5" x 8") oval body approximately 450mm (18") long.
Is MagnaFlow 12256 a straight-through muffler?
Yes. It uses a perforated straight-through core designed to provide excellent exhaust flow while the surrounding acoustic material controls exhaust sound.
Is this a direct-fit muffler?
No. MagnaFlow 12256 is a universal performance muffler. Welding and exhaust fabrication will normally be required.
Will this muffler reduce exhaust noise?
Yes. The large 18" body provides substantial acoustic packing volume for sound control while retaining a free-flowing straight-through design. Final sound level will depend on the vehicle and complete exhaust system.
Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.
How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.
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
Workshop hours: Mon–Fri 8:00am–5:00pm (By Appointment Only) | Phone and email enquiries welcome 24 hours
Magnaflow-Muffler-12256
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MagnaFlow Muffler 12256 – 2.5" Centre Offset 5" x 8" Oval Stainless Steel
MagnaFlow 12256 universal performance muffler features a 63mm (2.50") inlet and outlet with a large 127mm x 200mm x 450mm (5" x 8" x 18") oval body. Its straight-through free-flow design provides excellent exhaust flow while producing the smooth, deep performance exhaust note MagnaFlow is known for.
Manufactured from 100% stainless steel, the 12256 uses a straight-through perforated core with acoustic packing to provide effective sound control without unnecessarily restricting exhaust flow. The centre / offset configuration is ideal for a wide range of custom and performance 2.5" exhaust systems.
Best Mufflers provides expert advice and fast shipping Australia-wide.
Click the image for larger views and more photos.