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MagnaFlow CatBack 14-18 GMC Sierra 1500 V8-6.2L Polished Stainless Exhaust w/ Black Coated Tips

SKU: MAG19378

Exhaust Systems

MAG Catback Exhaust...

MagnaFlow CatBack 14-18 GMC Sierra 1500 V8-6.2L Polished Stainless Exhaust w/ Black Coated Tips

SKU: MAG19378

Exhaust Systems

MAG Catback Exhaust...

A$3,113.27
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

MagnaFlow CatBack 14-18 GMC Sierra 1500 V8-6.2L Polished Stainless Exhaust w/ Black Coated Tips

The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips. MagnaFlow Performance Exhaust System Kit 19378 is made of durable stainless steel and built using CNC precision robotic manufacturing techniques, all backed by MagnaFlow’s limited lifetime construction warranty and 1 year finish warranty.

Additional Information

Magnaflow Street Series Black Cat-Back System

Part Type

Exhaust System Kit

Product Overview

The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips.

Additional Application Notes
• 3.5 in.; Incl. Inlet Pipe/Muffler/Tailpipe Assy/4 in. Black Coated Tip; Dual Behind Pass. Rear Tire Rear Exit; Stainless;Meets Or Exceeds CARB Emissions Requirements
• 3.5 in.; Incl. Inlet Pipe/Muffler/Tailpipe Assy/4 in. Black Coated Tip; Dual Behind Pass. Rear Tire Rear Exit; Stainless
• DUAL SAME SIDE BEHIND PASSENGER REAR TIRE EXIT

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 04:23:18

Features

  • CNC Precision Robotic Manufacturing Techniques
  • Durable Corrosion-Resistant Stainless Steel Construction
  • Dyno-proven performance

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

Attachment Type:Clamp-On
Catalytic Converter Quantity:0
Clamp Type:Band Clamp
Clamping Type:Band Clamp
Clamps Included:Yes
Description:Street Series Black Cat-Back System
Exhaust Pipe Material:Stainless
Exhaust Tip Connection:Welded-On
Exhaust Tip Cut:Angle Cut
Exhaust Tip Diameter:4
Exhaust Tip Edge:Folded Edge
Exhaust Tip Finish:Black Coated
Exhaust Tip Intercooled:No
Exhaust Tip Length:15.375
Exhaust Tip Material:Stainless Steel
Exhaust Tip Quantity:2
Exhaust Tip Resonated:No
Exhaust Tip Shape:Round
Exhaust Tip Wall:Double Wall
Exhaust Type:Cat-Back
Exit Position:Dual Same Side Behind Passenger Rear Tire
Exit Quantity:Dual
Exit Style:Dual Same Side Behind Passenger Rear Tire
Finish:Black Coated
Gasket Included:No
Gasket Or Seal Included:No
Hangers Included:Yes
Inlet Connection Type:Clamp-On
Inlet Inside Diameter:3.500 in.
Inlet Type:Clamp-On
Main Piping Diameter:3.5
Material:Stainless
Mounting Bracket Included:No
Muffler Body Diameter:5.000 in. x 11.000 in.
Muffler Body Finish:Polished
Muffler Body Height:5
Muffler Body Length:22
Muffler Body Material:Stainless Steel
Muffler Body Shape:Oval
Muffler Body Width:11
Muffler Configuration:Center/Offset
Muffler Count:1
Muffler Finish:Brushed
Muffler Inlet Diameter:3.500 in.
Muffler Material:Stainless Steel
Muffler Outlet Diameter:3.500 in.
Muffler Overall Length:27.750 in.
Muffler Quantity:1
Muffler Type:Straight-Through
Part Number:mag19378
Pipe Material:Stainless Steel
Recommended Use:Performance
Series:Street
Sound Level:Moderate
Subtitle:Cat-Back Performance Exhaust System
Subtitles:Cat-Back
System Type:Cat Back
Tail Pipe Diameter:3.500 in.
Tip Diameter:4
Tip Finish:Black Coated
Tip Length:15.375
Tip Material:Stainless Steel
Tip Quantity:1
Tip Shape:Round
Tip Type:Welded;Double Wall;Angle Cut;Folded Edge
Title:MagnaFlow Street Series Cat-Back Performance Exhaust System 19378
Tubing Diameter:3.500 in.
Type:Cat-Back
Valve Included:No
Valve Type:None

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 05:00:20

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 mag19378
SFX Item ID 4284284
Accounting SKU mag-19378
Manufacturer SKU 19378
Manufacturer UPC 888563084473
Alternative References 19378, MFL19378, MPE-19378

Exhaust System, Street Series, 409 Stainless Steel, Cat-Back, Passenger Side Exit, 3.5 in. Diameter, Satin Black Powdercoated Tips, Chevy, GMC, Kit

MagnaFlow Street Series performance exhaust systems deliver the smooth, deep sound you want—and the wide-open performance power you need! They feature straight-through flow designs for the ultimate in unrestricted horsepower and torque, while maintaining exhaust efficiency. These kits are an engineered balance of interior and exterior noise levels and are tested against SAE j1169 standards. Street Series components are built with 409 stainless steel and all mandrel-bent tubing. They're available in numerous configurations, including cat-back, rear axle-back, crossmember-back, and rear section; single, dual, tri, or quad turbo mufflers; and several outlet and tip options. Order the MagnaFlow Street Series performance exhaust tailored for your specific make and model. The systems carry a lifetime construction warranty.

Product Attributes
BrandMagnaFlow
Manufacturer's Part Number19378
Part TypeExhaust Systems
Product LineMagnaFlow Street Series Performance Exhaust Systems
UPC888563084473
System Material409 stainless steel
System StyleCat-back
Exhaust TypeSingle
Exit LocationPassenger side
System FinishNatural
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)3.50 in.
Muffler IncludedYes
Muffler QuantityOne
Muffler ConfigurationSingle inlet/Single outlet
Muffler StylePerforated tube with packing
Muffler Material409 stainless steel
Muffler FinishPolished
Hardware IncludedYes
Tailpipe Diameter (in.)3.50 in.
Tip IncludedYes
Tip Outlet Size (in.)4.00
Tip Quantity2
Tip ShapeRound
Tip CutSlant
Tip Edge StyleRolled edge, double-wall
Tip Material304 stainless steel
Tip ColorBlack
RemanufacturedNo
QuantitySold as a kit.
Special AttentionIt is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Manufacturer Attributes
Catalytic Converter Quantity 0
Muffler Quantity 1
Muffler Body Width 11
Exhaust Tip Length 15.375
Exhaust Tip Quantity 2
Muffler Body Length 22
Main Piping Diameter 3.5
Exhaust Tip Diameter 4
Muffler Body Height 5
Exhaust Tip Cut Angle Cut
Exhaust Tip Finish Black Coated
Muffler Finish Brushed
Type Cat-Back
Inlet Type Clamp-On
Exhaust Tip Wall Double Wall
Exit Style Dual Same Side Behind Passenger Rear Tire
Exhaust Tip Edge Folded Edge
Gasket Or Seal Included No
Valve Included No
Mounting Bracket Included No
Exhaust Tip Resonated No
Exhaust Tip Intercooled No
Exhaust Tip Shape Round
Exhaust Tip Material Stainless Steel
Pipe Material Stainless Steel
Muffler Body Material Stainless Steel
Muffler Type Straight-Through
Exhaust Tip Connection Welded-On
Clamps Included Yes
Hangers Included Yes
Clamping Type Band Clamp
Series Street
Title MagnaFlow Street Series Cat-Back Performance Exhaust System 19378
Manufacturer Designation Street Series Black Cat-Back System
Product Class Exhaust System Kit
Construction/Type Magnaflow Street Series Black Cat-Back System
Product Outline Durable corrosion-resistant stainless steel construction
CNC precision robotic manufacturing techniques
Dyno-proven performance
Vehicle Brief Exhaust System
Market Description The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips.

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