Will this catalytic converter keep my check engine light off?

Yes, this MagnaFlow converter is designed to meet or exceed California Air Resource Board (CARB) requirements. It has undergone additional testing to comply with CARB guidelines, which helps ensure it functions correctly to prevent the check engine light from illuminating for emissions-related faults.

Do I need to weld or cut anything to install this converter?

No, this is a direct-fit catalytic converter. It's designed to bolt directly in place of your original equipment, meaning no cutting or welding is required for installation, provided you have the proper tools.

What is included with this catalytic converter?

This MagnaFlow catalytic converter includes the converter itself and one crush ring gasket to help ensure a proper seal during installation. You will need to use your own tools for the installation process.

MagnaFlow Conv Direct Fit 03-09 Hummer H2

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Specifications

Brand: Magnaflow
Part #: 4451219
UPC: 888563104515

MagnaFlow Conv Direct Fit 03-09 Hummer H2

Name: MagnaFlow Conv Direct Fit 03-09 Hummer H2
Brand: Magnaflow
SKU: magnaflow-magnaflow-conv-direct-fit-03-09-hummer-h2-t14-344257
Price: 978.00 USD
Availability: InStock

$978.00

Only 1 left in stock

Fits 2003 Hummer H2. MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4451219 keeps your check engine light off with a direct-fit design.

Key Features

Fits 2003 Hummer H2.
This is a California Grade CARB Compliant Direct-Fit Catalytic Converter, designed to keep your check engine light off and meet strict emissions standards.
Features free-flowing mandrel-bent tubing that replicates OE geometry for smooth exhaust flow and peak fuel economy.
Constructed with high-strength 16-gauge 409 stainless steel tubing for exceptional corrosion resistance and a long service life.
The OE-like spun body design and single laser fusion weld greatly reduce the possibility of exhaust leaks.
Compact, low-mass design allows for greater thermal efficiency.

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Fits this vehicle

Hummer H2 2003

Product Details

If you're working on a 2003 Hummer H2 and need to replace the catalytic converter, this MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter is a solid option. It's designed to keep your check engine light off and ensure your exhaust system is functioning correctly, especially if you're in California or another state with strict emissions requirements. MagnaFlow builds these converters to meet or exceed California Air Resource Board (CARB) standards, meaning they've passed extra testing for legal use in those areas.

What's great about this converter is that it's a direct-fit part. That means MagnaFlow uses 3D scanning during their research and development to make sure it matches the original equipment's fit and function precisely. The tubing is mandrel-bent for smooth exhaust flow, which helps maintain factory performance and fuel efficiency. It's constructed from highly corrosion-resistant stainless steel, and the body design replicates the original equipment's spun body style. This design, along with a single laser fusion weld, greatly reduces the chance of exhaust leaks. Plus, its compact, low-mass design helps with thermal efficiency.

Installation is made easier because it's designed to be a bolt-on replacement, so you won't need to cut or weld anything, provided you have the proper tools. MagnaFlow also includes the necessary gaskets to help you get a proper seal and avoid potential exhaust leaks. This converter is built with high-strength 16-gauge 409 stainless steel tubing for durability and a long service life.