2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
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Flowmaster 40 Series Delta Flow 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 S503461
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$129.56
8 Reviews
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Free-Flow Muffler Increases Performance with an Aggressive Sound
- Constructed from 16 Gauge Aluminized Steel
- Delta Flow Technology
- Excellent for Street and Track
- Universal Fit
- Not Direct Fit – Welding Required
- 2.25-inch Inner Diameter
- Three-Year Warranty
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 2.25 Inch |
Description
Oval Muffler. The Flowmaster 40 Series Delta Flow Offset/Offset Oval Muffler utilizes Flowmaster’s patented Delta Flow Technology, which utilizes interior baffles to producing a scavenging effect to decrease interior while putting out an aggressive sound. This muffler is excellent for both the street and the track and will increase your Sierra’s horsepower by improving the exhaust flow. If you’re looking for a sporty sound without the drone, this muffler could be the answer.
Universal Fit. The Flowmaster 40 Series Oval Muffler is constructed from 16-gauge aluminized steel, so it’s durable to last through the elements for years to come. Aside from It’s free-flowing design, the larger 2.25-inch inner diameter is what also attributes to the bump in horsepower.
Warranty Information. The Flowmaster 40 Series Oval Muffler is covered by a three-year warranty. Check the manufacturer’s site for more details.
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 40 Series Delta Flow Offset/Offset Oval Muffler fits 1999-2024 GMC Sierra 1500 models.
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Flowmaster 942443
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Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
5.0
Customer Reviews (8)
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
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