SKU: 40343200078

Exhaust System Kit for Street Series Cat-Back Performance Exhaust System MagnaFlow 19543

Sale price$802.35 Regular price$891.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Exhaust System Kit for Street Series Cat-Back Performance Exhaust System MagnaFlow 19543Overview: The MagnaFlow Chevrolet Suburban GMC Yukon XL Street Series Cat Back Performance Exhaust System #19543 drastically improves your 2021 Chevrolet Suburban (Premier High Country) or GMC Yukon XL Denali by enabling MagnaFlows deep signature sound and dyno proven performance to work their magic in improving your driving experience while keeping interior noise in check. Noise control is possible thanks to MagnaFlows No Drone Technology (NDT),

Overview:

The MagnaFlow Chevrolet Suburban/GMC Yukon XL Street Series Cat-Back Performance Exhaust System #19543 drastically improves your 2021 Chevrolet Suburban (Premier/High Country) or GMC Yukon XL Denali by enabling MagnaFlow’s deep signature sound and dyno proven performance to work their magic in improving your driving experience while keeping interior noise in check. Noise control is possible thanks to MagnaFlow’s No Drone Technology (NDT), which uses quarter-wave passive noise cancellation tuned to the specific droning frequency of your Chevrolet Suburban (Premier/High Country) or GMC Yukon XL Denali in order to eliminate exhaust drone. NDT was designed to take the most popular bolt-on modifications into consideration. This cat-back exhaust kit features 3” diameter piping, straight-through muffler, quarter-wave resonators, quad split rear exit and black chrome-finished 4” tips for an extra sporty appearance. The exhaust system is made entirely of stainless steel and was designed from the beginning with weight and ground clearance in mind to improve durability and maintain your 2021 Chevrolet Suburban/GMC Yukon XL’s utility. CNC precision robotic manufacturing and mandrel bent tubing allow for hassle-free bolt-on installation. MagnaFlow stands by the reliability of their products with a limited lifetime warranty.

Interchange:
Brand  Interchange Part Number

Application:

Year Make Model Submodel Engine Size
2021 Cadillac Escalade ESV 6.2L/V8
2021 Chevrolet Suburban 6.2L/V8
2021 GMC Yukon XL 6.2L/V8
2021 Chevrolet Suburban Premier 5.3L/V8

Specs:

Clamp Type Band Clamp
Tip Length (In.) 12
Muffler Quantity 3
Muffler Body Material Stainless Steel
Mounting Bracket Included No
Hangers Included Yes
Valve Included No
Type Cat-Back
Title Street Series
Tip Type Welded-On;Double Wall;Angle Cut;Folded Edge
Tip Shape Round
Tip Material Stainless Steel
Tip Finish Black Chrome
Exit Style Quad Split Rear
Tip Diameter (In.) 4
Subtitle Cat-Back
Series Street
Muffler Type Position Rear Tuned Chamber
Muffler Type Position Front Straight-Through
Muffler Size Position Rear (In.) 4x4x11
Muffler Size Position Front (In.) 5x11x22
Muffler Finish Polished
Main Piping Diameter (In.) 3
Inlet Connection Type Clamp-On
Gasket Included No
Pipe Material Stainless Steel
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40343200078

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4.5 ★★★★★
Based on 22 reviews
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Product Reviews
L
Verified Purchase
Ligia
Louisville, US
★★★★★ 5
Better than Kilmat
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Great adhesion, and you can immediately see the sound difference when you rap the area and compared it to another area without it. Also, very easy to cut and apply. Once on, you may not be able to peel it and reposition it, so be sure where you want it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
J
Verified Purchase
J M.
Pawtucket, US
★★★★★ 3
Not much noise reduction…
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Easy to install but did not provide much sound dampening…
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
M
Verified Purchase
Mike
Louisville, US
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
P
Verified Purchase
Paul
Louisville, US
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Awesome product 👌
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
I love this stuff. I use it alot. Sticks great Easy to use Molds super easy Really helps with sound. Great product. I wish I could get sponsored for this product on my projects..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026

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