Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

MagnaFlow CatBack 17-18 Honda Civic L4 1.5LGAS Dual Exit Polished Stainless Exhaust

SKU: MAG19420

Exhaust Systems

MAG Catback Exhaust...

MagnaFlow CatBack 17-18 Honda Civic L4 1.5LGAS Dual Exit Polished Stainless Exhaust

SKU: MAG19420

Exhaust Systems

MAG Catback Exhaust...

A$2,677.27
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.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

The MagnaFlow Honda Civic Competition Series Cat-Back Performance Exhaust System brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we're so well known for. This exhaust kit is designed to enhance your 1.5L Honda Civic with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Center Rear exit with 4.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system's cat-back layout replaces your ride's exhaust system from near the catalytic converter on back. Exhaust system 19420 is engineered to make your vehicle's engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19420's direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Overview

The MagnaFlow 2017-2020 Honda Civic Competition Series Cat-Back Performance Exhaust System 19420 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we're so well known for. This exhaust kit is designed to enhance your 1.5L 2017-2020 Honda Civic with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Center Rear exit with 4.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system's cat-back layout replaces your ride's exhaust system from near the catalytic converter on back. Exhaust system 19420 is engineered to make your vehicle's engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19420's direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's limited lifetime warranty. Please check to ensure compliance with local noise regulations.


Features and Benefits

  • Crafted From 409 Stainless Steel With All Mandrel-Bent Tubing
  • Increased Horsepower And Torque
  • Aggressive Exterior Sound

Product Details

11011:5
11040:11
11041:5
Anticipated Ship Out Time:Approximately 1-2 Days
Attachment Style:Bolt-On
Attachment Type:Bolt-On
Catalytic Converter Quantity:0
Clamp Type:V-Band Clamp
Clamping Type:V-Band Clamp
Clamps Included:Yes
Color/Finish:Stainless
Description:Competition Series Stainless Cat-Back System
Exhaust Inlet Connection Type:Bolt-On
Exhaust Pipe Material:Stainless
Exhaust Tip Connection:Welded-On
Exhaust Tip Cut:Angle Cut
Exhaust Tip Diameter:4.5
Exhaust Tip Edge:Folded Edge
Exhaust Tip Finish:Polished
Exhaust Tip Intercooled:No
Exhaust Tip Length:5.75
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 Location:Dual Center Rear
Exit Position:Dual Center Rear
Exit Quantity:Dual
Exit Style:Dual Center Rear
Finish:Stainless
Gasket Included:No
Gasket Or Seal Included:No
Hangers Included:Yes
Inlet Connection Type:Bolt-On
Inlet Inside Diameter:2.500 in.
Inlet Type:Bolt-On
Main Piping Diameter:2.500 in.
Material:Stainless
Mounting Bracket Included:No
Muffler (Front) Body Height:5
Muffler (Front) Body Length:14
Muffler (Rear) Body Height:5
Muffler Body Diameter:5.000 in. x 5.000 in.
Muffler Body Finish:Polished
Muffler Body Height Position Front:5
Muffler Body Height Position Rear:5
Muffler Body Height:5.000 in.
Muffler Body Length Position Front:14
Muffler Body Length Position Rear:11
Muffler Body Length:14.000 in.
Muffler Body Material:Stainless Steel
Muffler Body Shape:Round
Muffler Body Width Position Front:5
Muffler Body Width Position Rear:5
Muffler Body Width:5.000 in.
Muffler Configuration:Center/Center
Muffler Count:3
Muffler Finish:Brushed
Muffler Inlet Diameter:2.375 in.
Muffler Material:Stainless Steel
Muffler Outlet Diameter:2.375 in.
Muffler Overall Length:14.000 in.
Muffler Quantity:3
Muffler Type:Straight-Through
Part Number:mag19420
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Recommended Use:Performance
Series:Competition
Sound Level:Aggressive
Subtitle:Cat-Back Performance Exhaust System
Subtitles:Cat-Back
System Type:Cat Back
Tail Pipe Diameter:2.500 in.
Tip Diameter:4.500 in.
Tip Finish:Polished
Tip Length:5.750 in.
Tip Material:Stainless Steel
Tip Quantity:2
Tip Shape:Round
Tip Type:Double Wall
Title:MagnaFlow 2017-2020 Honda Civic Competition Series Cat-Back Performance Exhaust System
Tubing Diameter:2.500 in.
Type:Cat-Back
Valve Included:No
Valve Type:None
WARNING CA Proposition 65:No
Warranty:Lifetime

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-10-15 19:40:39

Features

  • Aggressive exterior sound
  • Crafted From 409 Stainless Steel With All Mandrel-Bent Tubing
  • Increased Horsepower And Torque

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
19420
Product Attributes - Part Type
Exhaust Systems
Product Attributes - Product Line
MagnaFlow Street Series Performance Exhaust Systems
Product Attributes - UPC
888563078205
Product Attributes - System Material
409 stainless steel
Product Attributes - System Style
Cat-back
Product Attributes - Exhaust Type
Single
Product Attributes - Exit Location
Rear center
Product Attributes - System Finish
Polished
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Intermediate Pipe Diameter (in.)
2.50 in.
Product Attributes - Muffler Included
Yes
Product Attributes - Muffler Quantity
Three
Product Attributes - Muffler Configuration
Single inlet/Dual outlet
Product Attributes - Muffler Style
Perforated tube with packing
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Muffler Finish
Polished
Product Attributes - Hardware Included
Yes
Product Attributes - Tailpipe Diameter (in.)
2.50 in.
Product Attributes - Tip Included
Yes
Product Attributes - Tip Outlet Size (in.)
4.50
Product Attributes - Tip Quantity
2
Product Attributes - Tip Shape
Round
Product Attributes - Tip Cut
Straight
Product Attributes - Tip Edge Style
Non-rolled edge, double-wall
Product Attributes - Tip Material
409 stainless steel
Product Attributes - Tip Color
Polished
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Depending on vehicle configuration, some modifications may be required. See installation instructions for details, if applicable.
Product Attributes - Special Attention
It 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.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag19420
SFX Item ID 4284275
Supplier Item Code 4284275
Manufacturer SKU 19420
Manufacturer UPC 888563078205
Alternative References mpe-19420, MFL19420, 1.5LGAS

Compatibility

Application Data
  • UniversalNo
    MakeHONDA
    ModelCIVIC
    SubmodelSI
    Beginning Year2017
    Ending Year2020
    Engine TypeL4
    Liter1.5
    CC1497
    Engine Size1.5L/1497cc
    Engine FamilyHonda/Acura 4-cylinder
    Body StyleCoupe
    TransmissionManual
    DrivetrainFWD
    Application NotesDUAL CENTER REAR EXIT

Loading compatibility information...

Keep shopping

More from Magnaflow