2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
FREE 1 to 3-Day Delivery on Orders $119+ Details
Talk to a Sierra 1500 Sales Tech
1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Get $80 Off
Redeem Now >
Find Mufflers for your Sierra 1500
Flowmaster Super 44 Series Offset/Offset Oval Muffler; 2.25-Inch Inlet/2.25-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item S503490
Sierra 1500 Sales Techs:
Connect Now
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$114.26
3 Reviews
On Sale
-10% $114.26 each Was $126.95
Choose options to add to cart.
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Dynamic Quality High-Performance Muffler
- Enhances Power and Torque
- Delivers Bold Exhaust Sound
- Innovative 2 Chamber Street Muffler
- Made with Durable 409S Stainless Steel
- Patented, Race-Proven Delta Flow Technology
- Inlet/Outlet: 2.25”
- Overall Length: 19”
- Width: 9.75”
- Thickness: 4.00”
- Case Length: 13.00”
- Center to Center: 5.00”
- Lifetime Warranty
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 2.25 Inch |
Description
Bold Exhaust Tone. The Flowmaster Super 44 Series Offset/Offset Oval Muffler – 2.25 inches will enhance the power and torque in your GMC Sierra 1500. The 19-inch long muffler has two chambers to ensure high-performance value. You can take to the road in confidence in your GMC with this superior quality muffler installed, knowing that your truck will have improved performance and stand out dynamically with a bold exhaust sound.
Steel Construction. The muffler is manufactured with durable 409S stainless steel and features an inlet and outlet that measures 2.25 inches. The steel case is 13 inches long and 4 inches thick to augment strength. The muffler design from center to center measures 5 inches wide. It was made with patented, race-proven Delta Flow technology to ensure that you’ll benefit from only the best caliber muffler for your GMC. You can rely on the quality craftsmanship of this muffler that will provide many years of dynamic performance for your truck.
Lifetime Warranty. This muffler has a limited lifetime warranty which covers any craftsmanship defects.
Modifications Required. This Muffler was designed to be used on mutliple applications, as it is not a direct fit replacement part. In order to install this Muffler properly on your vehicle, some modifications to the exhaust system will be required.
Application. The Flowmaster Super 44 Series Offset/Offset Oval Muffler – 2.25 inch is designed to fit all 1999-2025 GMC Sierra 1500 models.
Shop All Truck Parts And Accessories
Shop All Truck Exhaust
Shop All Truck Mufflers
Flowmaster 842448
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
5.0
Customer Reviews (3)
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
Questions & Answers
No questions about this product yet.
Ask the First Question
