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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Find Catalytic Converters for your Sierra 1500
Flowmaster Direct Fit Catalytic Converter; 49 State Legal (07-08 Sierra 1500, Excluding 6.2L)Find parts that fit my vehicle
Item S503505
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features
- Superior Quality Direct Replacement
- Designed to Effectively Improve Air Flow
- Heavy-Duty Stainless Steel Construction
- Durable Exterior Casing and Quality Hardware
- High Caliber Ceramic Substrate Material
- Inlet Diameter: 2.5”
- Body Width: 30”
- Outlet Diameter: 3”
- Body Length: 40”
- 25,000 Mile Emissions Warranty
- 50,000 Mile/5 Year Exterior Casing Warranty
- Compliant with all USEPA 49-State Requirements
- Simple Installation
- Made in the USA
- Fits All 2007-2008 GMC Sierra 1500 Models, Excluding 6.2L
Description
Improved Air Flow. The Flowmaster Direct Fit Catalytic Converter – 49 State Legal is a superior quality direct fit replacement for the OEM component in your GMC Sierra 1500. It was innovatively designed to effectively improve air flow to augment performance in your GMC.
Steel Construction. You can trust the high quality of this converter that is manufactured from heavy-duty stainless steel and high caliber ceramic substrate material. It has a durable exterior casing and quality hardware.
Specifications. The body width is 30 inches. The body length measures 40 inches long. The diameter of the inlet is 2.5 inches. The outlet diameter is 3 inches.
Simple Installation. This converter was designed to have a simplified direct fit clamp-on installation process that can be completed in under 2 hours with basic hand tools.
Limited Warranty. Flowmaster Mufflers provides a 25,000 mile emissions warranty and a 50,000 mile/5 year warranty covering the exterior casing. Make sure to read through the warranty details to fully understand the limitations that apply.
Application. The Flowmaster Direct Fit Catalytic Converter – 49 State Legal is designed to fit all 2007-2008 GMC Sierra 1500 models. It is not compatible on the 6.2L V8 vehicles. The converter is compliant with all USEPA 49-state requirements. It is not for legal street use or for sale in California. This converter is made in the USA.
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) Catalytic Converter
- Mounting Hardware
- Installation Directions
5.0
Customer Reviews (5)
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
