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MagnaFlow Muff GP 4 Dia 18inch 3/3

SKU: MAG18129

Mufflers

MAG Glasspack Muffler...

MagnaFlow Muff GP 4 Dia 18inch 3/3

SKU: MAG18129

Mufflers

MAG Glasspack Muffler...

A$264.76
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

The MagnaFlow 4in. Round Glasspack Performance Exhaust Muffler 18129 enhances your ride with the deep, classic sound that glasspack mufflers are known for. The round muffler body features a free-flowing reversible straight-through 3/3in. diameter configuration and single stage packing with a satin finish. This weight-optimized glasspack muffler is engineered to bring out the inner hot rod in your ride with plenty of volume and dyno-proven performance, so please check to ensure compliance with local noise regulations. 18129 offers flexibility when it comes to installation thanks to its universal design, however, professional installation is recommended. Muffler 18129 is made of corrosion resistant aluminized steel and produced using CNC precision robotic manufacturing techniques, all backed by MagnaFlow's 90-day limited construction warranty.

Product Overview

The MagnaFlow 4in. Round Glasspack Performance Exhaust Muffler 18129 enhances your ride with the deep, classic sound that glasspack mufflers are known for. The round muffler body features a free-flowing reversible straight-through 3/3in. diameter configuration and single stage packing with a satin finish. This weight-optimized glasspack muffler is engineered to bring out the inner hot rod in your ride with plenty of volume and dyno-proven performance, so please check to ensure compliance with local noise regulations. 18129 offers flexibility when it comes to installation thanks to its universal design, however, professional installation is recommended. Muffler 18129 is made of corrosion resistant aluminized steel and produced using CNC precision robotic manufacturing techniques, all backed by MagnaFlow's 90-day limited construction warranty.


Features and Benefits

  • Straight-Through Performance Design
  • Anti-Corrosive Aluminized Body
  • Dyno Proven

Product Details

Body Diameter:4 x 4
Body Finish:Aluminized
Body Height:4.000 in.
Body Length:18.000 in.
Body Material:Aluminized
Body Shape:Round
Body Width:4.000 in.
Core Diameter:3
Core Size:3
Description:Glasspack Performance Muffler; 3in. Center/Center; 4x18x4 Body
Exhaust Tip Quantity:
Finish:Aluminized
Hanger Included:No
Inlet Connection Type:Pipe
Inlet Diameter:3
Inlet Inside Diameter:3.000 in.
Inlet Outside Diameter:3.000 in.
Inlet Position:Center
Inlet Quantity:1
Inlet Type:Center
Main Piping Diameter:3.000 in.
Material:Aluminized
Muffler Body Diameter:4.000 in. x 4.000 in.
Muffler Configuration:Center/Center
Muffler Count:1
Muffler Overall Length:22.000 in.
Muffler Type:Glass Pack
Outlet Diameter:3
Outlet Inside Diameter:3.000 in.
Outlet Outside Diameter:3.000 in.
Outlet Position:Center
Outlet Quantity:1
Outlet Type:Center
Overall Length:22
Part Number:mag18129
Prop 65 Y/N:No
Removable Core:No
Reversible:Yes
Series:Glasspack
Shape:Round
Subtitle:Performance Muffler
Subtitles:Center/Center
Tip Quantity:0
Title:MagnaFlow 4in. Round Glasspack Performance Exhaust Muffler 18129
Type:Glasspack
WARNING CA Proposition 65:No

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-13 22:27:41

Features

  • Anti-Corrosive Aluminized Body
  • Dyno Proven
  • Straight-Through Performance Design

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
18129
Product Attributes - Part Type
Mufflers
Product Attributes - Product Line
MagnaFlow Glasspack Mufflers
Product Attributes - UPC
841380055019
Product Attributes - Muffler Material
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
Glasspack
Product Attributes - Inlet Location
Center
Product Attributes - Outlet Location
Center
Product Attributes - Case Shape
Round
Product Attributes - Reversible
Yes
Product Attributes - Muffler Finish
Aluminized
Product Attributes - Case Exterior Length (in.)
18.00 in.
Product Attributes - Case Outside Diameter (in.)
4.00 in.
Product Attributes - Overall Length (in.)
22.00 in.
Product Attributes - Outlet Style
Standard, without tip
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag18129
SFX Item ID 4286111
Supplier Item Code 4286111
Manufacturer SKU 18129
Manufacturer UPC 841380055019
Alternative References mpe-18129, MFL18129, 18inch

Brochures

Compatibility

Application Data
  • UniversalYes

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