Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

MagnaFlow Muffler Mag SS 14X5X8 2.5 C/D

SKU: MAG12158

Mufflers

MAG SS Muffler

MagnaFlow Muffler Mag SS 14X5X8 2.5 C/D

SKU: MAG12158

Mufflers

MAG SS Muffler

A$342.85
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.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

The MagnaFlow 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 12158 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 2.5/2.5in. 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 12158s weight-optimized 5x8x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12158 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 12158 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 2.5/2.5in. 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 12158s weight-optimized 5x8x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12158 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
  • 100% Stainless Steel
  • Mufflers Are Bi-Directional
  • 100 Percent Stainless Steel
  • Delivers a Smooth, Deep Tone

Product Details

Body Diameter:5 x 8
Body Finish:Satin
Body Height:5.000 in.
Body Length:14.000 in.
Body Material:Stainless Steel
Body Shape:Oval
Body Width:8.000 in.
Core Diameter:2.5
Core Size:2.5
Description:Straight-Through Performance Muffler; 2.5in. Center/Dual; 5x14x8 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:Center
Main Piping Diameter:2.500 in.
Material:Stainless
Muffler Body Diameter:5.000 in. x 8.000 in.
Muffler Configuration:Center/Dual
Muffler Count:1
Muffler Overall Length:20.000 in.
Muffler Type:Straight-Through
Note:Y-Pipe
Outlet Diameter:2.5
Outlet Inside Diameter:2.500 in.
Outlet Outside Diameter:2.500 in.
Outlet Position:Rear
Outlet Quantity:2
Outlet Type:Dual
Overall Length:20
Part Number:mag12158
Prop 65 Y/N:No
Removable Core:No
Reversible:Yes
Series:Straight-Through
Shape:Oval
Subtitle:Performance Muffler
Subtitles:Single/Dual
Tip Quantity:0
Title:MagnaFlow 5 in. x 8 in. x 14 in. Oval Straight-Through Performance Exhaust Muffler 12158
Type:Straight-Through
WARNING CA Proposition 65:No

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-12 02:42:50

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
12158
Product Attributes - Part Type
Mufflers
Product Attributes - Product Line
MagnaFlow Performance Mufflers
Product Attributes - UPC
841380000743
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Inlet Diameter (in.)
2.50 in.
Product Attributes - Outlet Diameter (in.)
2.50 in.
Product Attributes - Inlet Quantity
1
Product Attributes - Outlet Quantity
2
Product Attributes - Electronic Valve
No
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
No
Product Attributes - Muffler Color
Natural
Product Attributes - Case Exterior Length (in.)
14.00 in.
Product Attributes - Overall Length (in.)
20.00 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 - Notes
4.00 in. center-to-center spacing on outlets. Reversible for custom installation.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag12158
SFX Item ID 4286022
Supplier Item Code 4286022
Manufacturer SKU 12158
Manufacturer UPC 841380000743
Alternative References mpe-12158, MFL12158, 14X5X8

Brochures

Compatibility

Application Data
  • UniversalYes

Loading compatibility information...

Keep shopping

More from Magnaflow