2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Guaranteed 12/24 Delivery Still Available see item page for details! available on most items - Details
Talk to a Sierra 1500 Sales Tech
1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Find Mufflers for your Sierra 1500
Flowmaster Super 44 Series Offset/Offset Oval Muffler; 2.50-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item S503491
Sierra 1500 Sales Techs:
Connect Now
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$114.26
5 Reviews
On Sale
-10% $114.26 each Was $126.95
Ship to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
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
- Offset/Offset Oval Muffler
- High Performance
- Compact 4" Design
- Stainless Steel Construction
- Delta Flow Technology
- Race-Proven Technology
- Limited Lifetime Warranty
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 2.50 Inch |
Description
They're Gonna Hear You Roar. The high performance Flowmaster Super 44 Series Offset/Offset Oval Muffler - 2.5 in. gives your truck an aggressive sound - the most aggressive highest performing muffler found in a 4" case. A recent upgrade to the muffler's two-chamber design (Flowmaster's Delta Flow race-proven technology) gives it a powerful deep exhaust note is what defines this muffler and what will set you apart.
Setting the Standard. Constructed completely with only the highest quality 16 gauge, 409 stainless steel, Flowmaster has created a compact 4" muffler that performs for your Sierra. Each and every seam on the muffler has been MIG welded to provide a tight seal, and then covered in a black coating that's corrosion resistance ensuring long-lasting trouble free performance.
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.
Full Limited Lifetime Warranty. Flowmaster mufflers which are manufactured using stainless steel are covered by a limited lifetime warranty.
Application. The Flowmaster Super 44 Series Offset/Offset Oval Muffler - 2.5 in. is designed to fit 1999-2025 GMC Sierra 1500 trucks.
Setting the Standard. Constructed completely with only the highest quality 16 gauge, 409 stainless steel, Flowmaster has created a compact 4" muffler that performs for your Sierra. Each and every seam on the muffler has been MIG welded to provide a tight seal, and then covered in a black coating that's corrosion resistance ensuring long-lasting trouble free performance.
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.
Full Limited Lifetime Warranty. Flowmaster mufflers which are manufactured using stainless steel are covered by a limited lifetime warranty.
Application. The Flowmaster Super 44 Series Offset/Offset Oval Muffler - 2.5 in. is designed to fit 1999-2025 GMC Sierra 1500 trucks.
Shop All Truck Parts And Accessories
Shop All Truck Exhaust
Shop All Truck Mufflers
Flowmaster 842548
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
- Complete Installation Instructions
5.0
Customer Reviews (5)
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
