2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Flowmaster 50 Series HD Offset/Center Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item S525120
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1 Reviews
Our Price
$247.95 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Oval Muffler Uses Patented Technology To Improve Fuel Efficiency
- More Power To The Ground With Improvements To Torque And Horsepower
- Created Using Weather-Resistant Aluminized Steel
- Simple Black Coloring
- Moderate Exterior Sound
- Mild Interior Resonance
- Ideal For Trucks And Other Large Vehicles
- Cutting And Drilling May Be Required For Installation
- Comes With 3-Year Warranty
- Universal Vehicle Fitment With Adaptation When Needed
| Brand | Flowmaster |
| Muffler Inlet Size | 3.00 Inch |
Description
Get The Power You Need. The Flowmaster 50 Series HD Offset/Center Oval Muffler's chambered design ensures it maintains a moderate exterior sound while reducing interior resonance. However, it's the power gains that make this muffler so impressive. You'll notice marked improvements to torque and horsepower when you put your foot down. Couple that with the improvements to fuel efficiency compared to your factory muffler, and you have the ideal replacement part.
Tough And Sturdy. The use of 16-gauge aluminized steel means this muffler can take a battering from road and trail debris without denting or cracking. Plus, the material used ensures it doesn't rust and that the color won't fade due to sun exposure. It arrives with sleek black coloring.
Professional Installation Recommended. Though the Flowmaster 50 Series HD Offset/Center Oval Muffler offers universal fitment, some adaptations will likely be required. This makes professional installation a must, especially if you don't have a jack and stand at home.
Protected By 3-Year Warranty. Thanks to the manufacturer's 3-year warranty, you're covered against problems with manufacturing and materials. This warranty carries exclusions for user damage and only applies to the part purchaser.
Application. The Flowmaster 50 Series HD Offset/Center Oval Muffler provides universal vehicle fitment with some adjustments.
Flowmaster 9530560
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
- (4) Inlet and Outlet Clamps
- Instruction Manual
5.0
Customer Reviews (1)
Review Summary
Installation Time: Less than 1 Hour
Jun 18, 2024
2024 - Luigig
Installation Time: Less than 1 Hour
Flowmaster 50
Excellent product made a big difference in the sound and performance
Fit & Finish 5/5
Loudness (Volume) 3/5
Exhaust Note 4/5
Bang For Your Buck 5/5
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
Mar 26, 2025
Review shared from Flowmaster American Thunder Dual Exhaust System with Black Tips; Rear Exit (19-25 6.2L Sierra 1500 w/ Factory Dual Exhaust)
2022 AT4 -
Exactly what the DR ordered!
Love it! Easy to install! Looks and sounds great! Price was right. Not too loud but finally sounds like a truck! Thank you American Trucks!
Feb 24, 2025
Review shared from Flowmaster Outlaw Dual Exhaust System with Black Tips; Side/Rear Exit (19-25 5.3L Sierra 1500 w/o Factory Dual Exhaust)
2023 Pro -
Awsome System
You will not sneak up on anyone with this system. If you drive conservatively you can keep it to a low rumble, but step on it and bang through the gears, heads will turn because it's LOUD! I don't know if it gave me more HP but my milage did increase by about 2mpg around town. Only design flaw I found would be when sending tips to the side you can not get them in the same position, they are about 3/4 inch difference from mudflaps.
Feb 3, 2025
Review shared from Flowmaster FlowFX Dual Exhaust System with Black Tips; Side Exit (19-25 5.3L Sierra 1500 w/o Factory Dual Exhaust)
2022 Elevation - KingJenk
Great Sound For Price! Must Buy!
This is a great product and an even better price. I paid for installation included with the pricing and it only took about a hour for completion.
Jan 15, 2025
Review shared from Flowmaster 40 Series Offset/Center Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)
2021 Denali - BigGuy2021
Perfect Levels
Perfect sound for my 21 Sierra 6.2L not too loud and overbearing, but provides the right amount of tone, resonance, and does not drone at cruising or highway speeds
Jan 10, 2025
Review shared from Flowmaster FlowFX Dual Exhaust System; Rear Exit (19-25 6.2L Sierra 1500)
2020 Denali - Beachowl1007
Just rght
Install this on my 2020 Sierra Denali 6.2 l.... The OEM exhaust just didn't sound like a truck. This exhaust gives the truck just enough rumble without being annoying. It's nice to have a truck that actually sounds like a truck now. Install was easy and only took about an hour or two with some basic hand tools.
Nov 11, 2024
Review shared from Flowmaster Super 44 Series Offset/Center Oval Muffler; 2.50-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)
2024 SLT - OscarGarza
Owner
Great sound!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!¡!!!!!!!!!!!!!!!!!!!!
Nov 2, 2024
Review shared from Flowmaster Super 40 Series Offset/Center Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)
2021 Denali - 1914
exactly what I was looking for
The particular product the Flowmaster super 40 series was exactly the note and drone I was looking for on my 2021 GMC Sierra Denali 1500. I couldn't be anymore happier than I am with this muffler.
Oct 7, 2024
Review shared from Flowmaster Outlaw Dual Exhaust System; Side/Rear Exit (14-18 5.3L Sierra 1500)
2018 Base - ConnorRigel
Flow master outlaw
Sounds great only took an hour to install with me and one other person
Sep 1, 2024
Review shared from Flowmaster 40 Series Offset/Center Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)
2011 SLE - 4X4GMCtruck
Flowmaster 40 Series
Worked out great. Not too loud, but loud enough to know you are driving a truck!
Jun 15, 2024
Review shared from Flowmaster FlowFX Extreme Single Exhaust System; Turn Down (19-25 5.3L Sierra 1500)
2019 Elevation - JamesJ98
Decent
Bought this to replace my MBRP exhaust which didn't fit in the hangars at all even though it said it would with my cab and bed length. This exhaust at least the hangars lined up but it does need to be cut which is annoying. Needs to be a direct bolt on option. It sounds good. I used my original pipes so it dumped farther back to avoid excess cabin noise. Good choice because its still fairly loud.
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