2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
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Flowmaster 70 Series Center/Offset Oval Muffler; 3-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item S503474
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$209.66
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- High-Quality 70 Series Muffler
- Offers Improved Sound Control
- Mild to Stock Exterior Tone
- Minimal Interior Resonance
- Provides Mileage and Power Gains
- 16 Gauge 409S Stainless Steel Build
- Fully MIG Welded for Durability
- Made in America
- Limited Lifetime Warranty
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 3.00 Inch |
Description
Customized Sound. If you're tired of settling for the stock sound of your 1999-2025 GMC Sierra 1500, check out Flowmaster's 3.0 in. 70 Series Center/Offset Oval Muffler. This muffler offers improved sound control, giving you a milder exterior tone rather than the stock rumble that wakes the neighborhood, as well as minimal interior resonance so that you can finally drive in peace and quiet.
High-End Performance. Not only does this muffler provide an improved sound, but it also utilizes a 3.0 in. tube to maximize your truck's performance. Offering increased horsepower and torque, along with significant fuel efficiency improvements, this muffler gives you an all-around impressive drive.
Fully MIG-Welded. Constructed in America for a guaranteed high-quality product, this muffler is built from 16-gauge 409S stainless steel, giving it the strength needed to stand up to difficult conditions without any issues. It is also fully MIG-welded, adding to its impressive durability so that you can confidently take it on the toughest trails.
Warranty. If you have any concerns about the craftsmanship or material quality of this muffler, check out its limited lifetime warranty for details and limitations.
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. Flowmaster's 3.0 in. 70 Series Center/Offset Oval Muffler is a perfect fit for all 1999-2025 GMC Sierra 1500s.
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Flowmaster 853072
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Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
4.7
Reviews of Flowmaster Exhaust Products (500+)
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
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