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MagnaFlow Muffler Mag SS 18X5X8 2.5X2.25/2.25

SKU: MAG12266

Mufflers

MAG SS Muffler...

MagnaFlow Muffler Mag SS 18X5X8 2.5X2.25/2.25

SKU: MAG12266

Mufflers

MAG SS Muffler...

A$434.44
IN STOCK! Est Ship 3-5 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 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 12266 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 2.5/2.25in. 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 12266s weight-optimized 5x8x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12266 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 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 12266 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 2.5/2.25in. 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 12266s weight-optimized 5x8x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12266 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:5 x 8
Body Finish:Satin
Body Height:5.000 in.
Body Length:18.000 in.
Body Material:Stainless Steel
Body Shape:Oval
Body Width:8.000 in.
Core Diameter:2.25
Core Size:2.25
Description:Straight-Through Performance Muffler; 2.5/2.25in. Offset/Dual; 5x18x8 Body
Exhaust Tip Quantity:
Finish:Satin
Hanger Included:No
Inlet Connection Type:Pipe
Inlet Diameter:2.5
Inlet Inside Diameter:2.500 in.
Inlet Outside Diameter:2.500 in.
Inlet Position:Front
Inlet Quantity:1
Inlet Type:Offset
Main Piping Diameter:2.500 in.
Material:Stainless
Muffler Body Diameter:5.000 in. x 8.000 in.
Muffler Configuration:Offset/Offset
Muffler Count:1
Muffler Overall Length:24.000 in.
Muffler Type:Straight-Through
Outlet Diameter:2.25
Outlet Inside Diameter:2.250 in.
Outlet Outside Diameter:2.250 in.
Outlet Position:Rear
Outlet Quantity:2
Outlet Type:Dual
Overall Length:24
Part Number:mag12266
Prop 65 Y/N:No
Removable Core:No
Reversible:Yes
Series:Straight-Through
Shape:Oval
Subtitle:Performance Muffler
Subtitles:Offset/Dual (Transverse)
Tip Quantity:0
Title:MagnaFlow 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 12266
Type:Straight-Through
WARNING CA Proposition 65:No

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-14 16:58:58

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
12266
Product Attributes - Part Type
Mufflers
Product Attributes - Product Line
MagnaFlow Performance Mufflers
Product Attributes - UPC
841380000941
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Inlet Diameter (in.)
2.50 in.
Product Attributes - Outlet Diameter (in.)
2.25 in.
Product Attributes - Inlet Quantity
1
Product Attributes - Outlet Quantity
2
Product Attributes - Internal Construction
Perforated stainless tube with packing
Product Attributes - Inlet Location
Offset
Product Attributes - Outlet Location
Offset
Product Attributes - Case Shape
Oval
Product Attributes - Reversible
No
Product Attributes - Case Exterior Length (in.)
18.00 in.
Product Attributes - Overall Length (in.)
24.00 in.
Product Attributes - Thickness (in.)
5.000
Product Attributes - Width (in.)
8.000 in.
Product Attributes - Outlet Style
Standard, without tip
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
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 mag12266
SFX Item ID 4286142
Supplier Item Code 4286142
Manufacturer SKU 12266
Manufacturer UPC 841380000941
Alternative References mpe-12266, MFL12266, 18X5X8, 2.5X2.25/2.25

Brochures

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelBASE
    Beginning Year1988
    Ending Year1988
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelBERLINETTA
    Beginning Year1984
    Ending Year1986
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelINDIANAPOLIS 500 PACE CAR
    Beginning Year1993
    Ending Year1993
    Engine TypeV8
    Engine FamilyChevy small block Gen II (LT-based engines)
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelIROC-Z
    Beginning Year1987
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelIROC-Z
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelIROC-Z
    Beginning Year1988
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelLT
    Beginning Year1987
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelRS
    Beginning Year1989
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelRS HERITAGE EDITION
    Beginning Year1992
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelSPORT
    Beginning Year1984
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1984
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1985
    Ending Year1987
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1991
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1991
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1993
    Ending Year1997
    Engine TypeV8
    Engine FamilyChevy small block Gen II (LT-based engines)
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1997
    Ending Year1997
    Engine TypeV8
    Engine FamilyChevy small block Gen II (LT-based engines)
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28
    Beginning Year1998
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28 HERITAGE EDITION
    Beginning Year1992
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28 HERITAGE EDITION
    Beginning Year1992
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28 SS
    Beginning Year1998
    Ending Year2002
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
  • UniversalNo
    MakePONTIAC
    ModelFIREBIRD
    SubmodelBASE
    Beginning Year1984
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakePONTIAC
    ModelFIREBIRD
    SubmodelBASE
    Beginning Year1987
    Ending Year1988
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakePONTIAC
    ModelFIREBIRD
    SubmodelFORMULA
    Beginning Year1989
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
  • UniversalNo
    MakePONTIAC
    ModelFIREBIRD
    SubmodelFORMULA
    Beginning Year1989
    Ending Year1992
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
  • UniversalNo
    MakePONTIAC
    ModelFIREBIRD
    SubmodelFORMULA
    Beginning Year1993
    Ending Year1997
    Engine TypeV8
    Engine FamilyChevy small block Gen II (LT-based engines)
    Engine Size5.7L/350

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