Does this fit both Chevrolet and GMC trucks?

Yes. This converter covers the 2007-2010 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD, all with the 6.0L gas engine.

Is this legal in California?

Yes. It meets California Air Resources Board (CARB) requirements and is legal in all 50 states including California, Colorado, New York, and Maine. Verify that your vehicle's Executive Order number and Engine Family Number appear in this converter's CARB Executive Order before installation.

What hardware is included?

MagnaFlow includes one crush ring gasket and one Torca AccuSeal exhaust clamp, plus mounting hardware. The included gasket and hardware help avoid the need to reuse corroded factory parts.

Does this work with the diesel engine?

No. This converter is specifically designed for the 6.0L gas engine in the 2007-2010 HD trucks. Diesel-equipped trucks use different exhaust aftertreatment systems and require different components.

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Specifications

Brand: Magnaflow
Part #: 4551644
UPC: 888563153841

Magnaflow 07-10 GMC Sierra 2500 HD 6.0L Direct Fit Converter

Name: Magnaflow 07-10 GMC Sierra 2500 HD 6.0L Direct Fit Converter
Brand: Magnaflow
SKU: magnaflow-magnaflow-07-10-gmc-sierra-2500-hd-6-0l-direct-fit-converter-t14-816318
Price: 3424.00 USD
Availability: BackOrder

$3424.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2007-2010 Chevy Silverado and GMC Sierra 2500/3500 HD 6.0L. MagnaFlow CARB-compliant direct-fit catalytic converter with gasket and clamp.

Key Features

Fits 2007-2010 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD with the 6.0L engine
CARB-compliant and legal for sale and installation in all 50 states including California
Direct-fit design -- bolts into the factory location without cutting or welding
16-gauge 409 stainless steel tubing with mandrel bends matching OE geometry
Crush ring gasket and Torca AccuSeal exhaust clamp included in the box
Spun body design with single laser fusion weld minimizes exhaust leak potential

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Will this fit your vehicle?

Moderate difficulty to install

Direct-fit bolt-on replacement with included gasket and Torca clamp -- no cutting or welding required.

About this part

Product Details

When the catalytic converter goes on a 2007-2010 Chevrolet Silverado or GMC Sierra 2500 HD or 3500 HD with the 6.0L gas engine, finding a replacement that actually meets emissions standards in every state can be a challenge. This MagnaFlow direct-fit converter (part number 4551644) is CARB-compliant and legal in all 50 states, bolting into the factory location without cutting or welding.

MagnaFlow uses 16-gauge 409 stainless steel tubing with mandrel bends that match the OE exhaust geometry, keeping exhaust flow and backpressure where the factory intended. The spun body design with a single laser fusion weld reduces the chance of leaks, and MagnaFlow's 3D scanning development process ensures a precise fit at the original mounting points. A crush ring gasket and Torca AccuSeal exhaust clamp come in the box, providing proper sealing and even clamping force without pipe distortion.

This converter covers both Chevrolet and GMC HD trucks -- specifically the 2007-2010 Silverado 2500 HD, 2007-2010 Silverado 3500 HD, 2007-2010 Sierra 2500 HD, and 2007-2010 Sierra 3500 HD, all with the 6.0L engine. The included hardware eliminates the need to reuse corroded factory components, making for a cleaner installation. If your HD truck needs a catalytic converter that passes inspection in any state and fits without fabrication work, this is a direct bolt-in replacement.