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MagnaFlow D-Fit Muffler Replacement 409 SS 3.5in 19-21 GMC Sierra 1500

SKU: MAG19534

Mufflers

MAG D-Fit Mufflers...

MagnaFlow D-Fit Muffler Replacement 409 SS 3.5in 19-21 GMC Sierra 1500

SKU: MAG19534

Mufflers

MAG D-Fit Mufflers...

A$1,965.31
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.

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Description

Muffler Kit

The MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit Without Muffler 19534 replaces the restrictive factory muffler of your 6.2L dual exhaust Truck with fast-flowing mandrel bent 4in. tubing, while maintaining the OEM piping and tailpipe. Exhaust Muffler kit 19534 features a direct-fit, easy-to-install design and is produced using CNC precision robotic manufacturing techniques. This exhaust system's durable, corrosion resistant stainless steel construction is backed by MagnaFlow's limited lifetime warranty.

Additional Information

Magnaflow Direct-Fit Muffler Replacement Kit With Muffler

Product Overview

Replace the restrictive factory muffler, while maintaining the OEM piping and tailpipe.

Additional Application Notes
• 3.500 in. Tubing; Clamp-On; Stainless Steel; W/Muffler
• Excludes Vehicles with Factory Performance Exhaust
• Excludes Vehicles with Factory Performance Exhaust 3.500 in. Tubing; Clamp-On; Stainless Steel; W/Muffler

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-08 04:15:14

Features

  • 409 Stainless Steel Construction
  • Maintains The OEM Piping And Tailpipe
  • Mandrel Bent Stainless Steel Tubing

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Body Finish:Brushed
Body Material:Stainless Steel
Clamp Type:Band Clamp
Clamping Type:Band Clamp
Clamps Included:Yes
Description:Direct-Fit Muffler Replacement Kit With Muffler
Exhaust Tip Quantity:0
Gasket Included:No
Gasket Or Seal Included:No
Grade Type:Performance
Hanger Included:Yes
Hangers Included:Yes
Heat Shield Attached:No
Inlet Connection Type:Clamp-On
Inlet Type:Clamp-On
Main Piping Diameter:3.5
Mounting Bracket Included:No
Muffler (Front) Type:Tuned Chamber
Muffler (Rear) Type:Straight-Through
Muffler 1 Body Height:4
Muffler 1 Body Length:14
Muffler 1 Body Width:4
Muffler 1 Length:14
Muffler 1 Width:4
Muffler 2 Body Height:6
Muffler 2 Body Length:14
Muffler 2 Body Width:6
Muffler 2 Length:14
Muffler 2 Width:6
Muffler Body Material:Stainless Steel
Muffler Finish:Brushed
Muffler Height Position Front:4
Muffler Height Position Rear:6
Muffler Length Position Front:14
Muffler Length Position Rear:14
Muffler Quantity:2
Muffler Size Position Front:4x4x14
Muffler Size Position Rear:6x6x14
Muffler Type Position Front:Tuned Chamber
Muffler Type Position Rear:Straight-Through
Muffler Width Position Front:4
Muffler Width Position Rear:6
Off Road Use Only:No
Outlet Tip Quantity:0
Part Number:mag19534
Pipe Material:Stainless Steel
Reversible:No
Subtitle:With Muffler Performance Exhaust System
Title:MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit With Muffler 19534
Type:D-Fit Muffler Replacement With Muffler
Valve Included:No

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:11:19

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance
StreetFX SKU mag19534
SFX Item ID 4288880
Accounting SKU mag-19534
Manufacturer SKU 19534
Manufacturer UPC 888563159256
Alternative References 19534, MFL19534, MPE-19534

Muffler, 3.50 in. Inlet/3.50 in. Outlet, Stainless Steel, Natural, Chevy, GMC, Kit

Modern engines make impressive horsepower and torque, but their mufflers often restrict flow, robbing you of power. MagnaFlow D-Fit Performance mufflers feature a straight-through design to free gases, polished 409 stainless steel construction, and U-bolt clamps. These muffler kits are designed to work with the OEM piping and tailpipe, but can be used to replace many aftermarket mufflers, too.

Product Attributes
BrandMagnaFlow
Manufacturer's Part Number19534
Part TypeMufflers
Product LineMagnaFlow D-Fit Performance Mufflers
UPC888563159256
Muffler Material409 stainless steel
Inlet Diameter (in.)3.50 in.
Outlet Diameter (in.)3.50 in.
Inlet Quantity1
Outlet Quantity1
Internal ConstructionPerforated stainless tube with packing
Inlet LocationCenter
Outlet LocationCenter
Case ShapeRound
ReversibleNo
Muffler FinishBrushed
Overall Length (in.)14.00 in.
RemanufacturedNo
QuantitySold as a kit.

Manufacturer Attributes
Body Finish Brushed
Body Material Stainless Steel
Clamps Included Yes
Hanger Included Yes
Gasket Or Seal Included No
Grade Type Performance
Heat Shield Attached No
Inlet Type Clamp-On
Main Piping Diameter 3.5
Mounting Bracket Included No
Off Road Use Only No
Pipe Material Stainless Steel
Reversible No
Valve Included No
Muffler 1 Body Height 4
Muffler 1 Body Length 14
Muffler 1 Body Width 4
Muffler 2 Body Height 6
Muffler 2 Body Length 14
Muffler 2 Body Width 6
Muffler Quantity 2
Clamping Type Band Clamp
Muffler (Front) Type Tuned Chamber
Muffler (Rear) Type Straight-Through
Muffler 1 Length 14
Muffler 1 Width 4
Muffler 2 Length 14
Muffler 2 Width 6
Muffler Body Material Stainless Steel
Muffler Height Position Front 4
Muffler Height Position Rear 6
Muffler Length Position Front 14
Muffler Length Position Rear 14
Muffler Width Position Front 4
Muffler Width Position Rear 6
Outlet Tip Quantity 0
Title MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit With Muffler 19534
Type D-Fit Muffler Replacement With Muffler
Manufacturer Designation Direct-Fit Muffler Replacement Kit With Muffler
Product Class Exhaust Muffler Kit
Construction/Type Magnaflow Direct-Fit Muffler Replacement Kit With Muffler
Product Outline Maintains the OEM piping and tailpipe
Mandrel Bent Stainless Steel Tubing
409 Stainless Steel Construction
Vehicle Brief Exhaust Muffler Kit
Market Description Replace the restrictive factory muffler, while maintaining the OEM piping and tailpipe.

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