Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
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Features, Description, Reviews, Q&A, Specs & Installation
Brand | Flowmaster |
Muffler Inlet Size | 3.00 Inch |
Powerful Muffler. Flowmaster’s esteemed Super 50 series has impressed yet again with the 3" Flowmaster Super 50 Series Center/Offset Oval Muffler, which injects your 1999-2025 Sierra 1500 with throaty, growling exhaust sound while keeping cab drone to a minimum.
Constructed to Perform. This Flowmaster oval muffler is comprised of a specially formulated tuning chamber that drones out interior resonance and comes in a large case for better exhaust flow. Its construction is rock solid, made out of welded 16 gauge 409 stainless steel tubing for rock hard toughness. Plus, it offers improved horsepower, fuel economy, and torque, serving as a top choice for large displacement vehicles.
Warranty. Flowmaster provides a 3-year limited warranty, which protects purchasers from any defects in material and workmanship. To learn more about what the warranty covers, please visit the manufacturer’s website.
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 3" Flowmaster Super 50 Series Center/Offset Oval Muffler fits the 1999-2025 GMC Sierra 1500.
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Flowmaster 853057
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Installation Info
Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
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