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MagnaFlow Muffler Mag SS 18X4X9 3 O/C

SKU: MAG11259

Mufflers

MAG SS Muffler...

MagnaFlow Muffler Mag SS 18X4X9 3 O/C

SKU: MAG11259

Mufflers

MAG SS Muffler...

A$516.95
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11259 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/3in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11259s weight-optimized 4x9x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11259 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.

Product Overview

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11259 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/3in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11259s weight-optimized 4x9x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11259 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.


Features and Benefits

  • Delivers A Smooth-Deep Tone
  • Delivers a Smooth, Deep Tone
  • Mufflers Are Bi-Directional
  • 100 Percent Stainless Steel
  • 100% Stainless Steel

Product Details

Body Diameter:4 x 9
Body Finish:Satin
Body Height:4.000 in.
Body Length:18.000 in.
Body Material:Stainless
Body Shape:Oval
Body Width:9.000 in.
Core Diameter:3
Core Size:3
Description:Straight-Through Performance Muffler; 3in. Offset/Center; 4x18x9 Body
Exhaust Tip Quantity:
Finish:Satin
Hanger Included:No
Inlet Connection Type:Pipe
Inlet Diameter:3
Inlet Inside Diameter:3.000 in.
Inlet Outside Diameter:3.000 in.
Inlet Position:Front
Inlet Quantity:1
Inlet Type:Center
Main Piping Diameter:3.000 in.
Material:Stainless
Muffler Body Diameter:4.000 in. x 9.000 in.
Muffler Configuration:Center/Offset
Muffler Count:1
Muffler Overall Length:24.000 in.
Muffler Type:Straight-Through
Note:Acoustical Packing
Outlet Diameter:3
Outlet Inside Diameter:3.000 in.
Outlet Outside Diameter:3.000 in.
Outlet Position:Rear
Outlet Quantity:1
Outlet Type:Offset
Overall Length:24
Part Number:mag11259
Prop 65 Y/N:No
Removable Core:No
Reversible:Yes
Series:Straight-Through
Shape:Oval
Subtitle:Performance Muffler
Subtitles:Center/Offset
Tip Quantity:0
Title:MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11259
Type:Straight-Through
WARNING CA Proposition 65:No

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-15 03:07:24

Features

  • 100 Percent Stainless Steel
  • 100% Stainless Steel
  • Delivers A Smooth-Deep Tone
  • Delivers a Smooth, Deep Tone
  • Mufflers Are Bi-Directional

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
11259
Product Attributes - Part Type
Mufflers
Product Attributes - Product Line
MagnaFlow Performance Mufflers
Product Attributes - UPC
841380000613
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Inlet Diameter (in.)
3.00 in.
Product Attributes - Outlet Diameter (in.)
3.00 in.
Product Attributes - Inlet Quantity
1
Product Attributes - Outlet Quantity
1
Product Attributes - Internal Construction
Perforated stainless tube with packing
Product Attributes - Inlet Location
Center
Product Attributes - Outlet Location
Offset
Product Attributes - Case Shape
Oval
Product Attributes - Reversible
Yes
Product Attributes - Case Exterior Length (in.)
18.00 in.
Product Attributes - Overall Length (in.)
24.00 in.
Product Attributes - Thickness (in.)
4.000
Product Attributes - Width (in.)
9.000 in.
Product Attributes - Outlet Style
Standard, without tip
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Reversible for custom installation.
Product Attributes - Special Attention
Due to a running change from MagnaFlow the finish of mufflers may vary.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag11259
SFX Item ID 4286127
Supplier Item Code 4286127
Manufacturer SKU 11259
Manufacturer UPC 841380000613
Alternative References mpe-11259, MFL11259, 18X4X9

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Compatibility

Application Data
  • UniversalYes

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