2008-2023
Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
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Flowmaster Original 40 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 CH11025
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65 Reviews
Our Price
$123.95 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Oval Muffler
- Stainless Steel w/Black Top Coat
- Fully MIG Welded
- Ideal Far All Driving Conditions
- Beefy Exterior Tone
- Audible Interior Sound
- 2-Chambered Design
- Inlet/Outlet Diameter: 2.25"
- Lifetime Limited Warranty
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 2.25 Inch |
Description
Durable Stainless Steel.The Flowmaster Original 40 Series Offset/Offset Oval Muffler - 2.25 in. provides you with performance and sound that you hear and feel with every foot. Carefully crafted from 409S stainless steel, this muffler is fully MIG welded to ensure it can withstand all driving conditions (road, track, rough terrain).
Sound Inside and Out. For those seeking out a beefy muscular tone, this muffler is the one for you. The aggressive exterior sound will resonate inside the cabin every time you press the gas. Not only will you be boosting your truck's sound, but you will simultaneously be improving horsepower and performance.
Modifications Required. This Muffler was designed to be used on multiple 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.
Lifetime Limited Warranty. Flowmaster covers most of its stainless steel mufflers with a Lifetime Limited Warranty. See its website for full details and exceptions.
Application. The Flowmaster Original 40 Series Offset/Offset Oval Muffler - 2.25 in. will fit any 1999-2025 GMC Sierra 1500 model.
Flowmaster 8042443
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
4.8
Customer Reviews (65)
Questions & Answers
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