MagnaFlow Muffler 12595 – 3.5" Single / Twin 3" 11" x 5" Oval Stainless

MagnaFlow 12595 straight-through performance muffler is designed for high-flow exhaust systems requiring a transition between one 89mm (3.50") exhaust pipe and twin 76mm (3") pipes.

The muffler is reversible, allowing it to be installed as a single 3.5" inlet with twin 3" outlets or in the opposite direction as twin 3" inlets with a single 3.5" outlet. This makes the 12595 particularly useful for custom single-to-dual and dual-to-single performance exhaust systems.

The large 280mm x 127mm x 560mm (11" x 5" x 22") oval body provides substantial acoustic packing volume for effective sound control while maintaining a high-flow internal design.

Key Features

• Genuine MagnaFlow performance muffler
• 89mm (3.50") single connection
• Twin 76mm (3") connections
• Reversible design for single-to-dual or dual-to-single applications
• High-flow straight-through perforated stainless steel core
• Large 280mm x 127mm (11" x 5") oval body
• 560mm (22") body length for 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: 12595
• Brand: MagnaFlow
• Application: Universal
• Single Connection: 89mm (3.50")
• Twin Connections: 76mm (3")
• Configuration: Single / Twin
• Direction: Reversible
• Body Profile: 280mm x 127mm (11" x 5") Oval
• Body Length: 560mm (22")
• Overall Length: Approx. 710mm (28")
• Material: Stainless Steel
• Finish: Satin
• Design: Straight-Through / Free Flow

Single-to-Dual or Dual-to-Single Installation

Exhaust Sound & Performance

Fitment Notes

What's Included

• 1 x MagnaFlow 12595 Stainless Steel Performance Muffler

Recommended With

• 89mm (3.50") Exhaust Pipe: See product code "ST089"
• 76mm (3") Exhaust Pipe: See product code "ST076"
• 89mm Exhaust Clamps: See product code "Clamp 89mm"
• 76mm Exhaust Clamps: See product code "Clamp 76mm"
• 3.50" Mandrel Bends: See product code "SB350"
• 3" Mandrel Bends: See product code "SB300"
• Exhaust hangers and mounting hardware

Warranty & Compliance

FAQ

What size exhaust pipe does MagnaFlow 12595 suit?
The 12595 has one 89mm (3.50") connection and two 76mm (3") connections.

Can MagnaFlow 12595 be installed in either direction?
Yes. The muffler is reversible and can be used as a single 3.5" inlet to twin 3" outlets or as twin 3" inlets to a single 3.5" outlet.

Can this muffler be used for a single-to-dual exhaust conversion?
Yes. This is one of the particularly useful applications for the 12595, as the single and twin connections allow the exhaust to divide within the muffler assembly.

Can it also combine a twin exhaust into a single exhaust?
Yes. When installed in the opposite direction, twin 3" pipes can enter the muffler and exit through the single 3.5" connection.

What size is the muffler body?
The oval body measures approximately 280mm x 127mm x 560mm (11" x 5" x 22"), so available underbody space should be checked before ordering.

Is this a direct-fit muffler?
No. MagnaFlow 12595 is a universal performance muffler and normally requires welding and custom exhaust fabrication.

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

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