Will this catalytic converter keep my check engine light off?

Yes, this MagnaFlow Direct-Fit Catalytic Converter is designed to meet Federal emissions requirements and function like the original equipment, which helps prevent the check engine light from illuminating due to emissions system faults.

Does this converter require welding or cutting for installation?

No, this is a direct-fit catalytic converter. It is designed to install using the proper tools without the need for cutting or welding, and it includes the necessary gaskets and hardware to simplify the process.

Can this catalytic converter be shipped to California?

No, this MagnaFlow catalytic converter is not CARB approved and cannot be shipped to California. It is designed to meet Federal/EPA emissions systems.

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Specifications

Brand: Magnaflow
Part #: 49917
UPC: 841380095220

MagnaFlow Conv DF 04-06 Audi S4 4.2L

Name: MagnaFlow Conv DF 04-06 Audi S4 4.2L
Brand: Magnaflow
Price: 964.00 USD
Availability: InStock

$964.00

On Backorder

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

Fits 2004-2009 Audi S4. Magnaflow direct-fit catalytic converter designed to keep your check engine light off and meet Federal emissions standards.

Key Features

Fits 2004-2009 Audi S4.
Constructed with high-strength 16-gauge 409 stainless steel tubing for excellent corrosion resistance.
Features free-flowing, mandrel-bent tubing that retains the original design and geometry for factory-like performance.
Replicates the OE spun body design with a single laser fusion weld to minimize leak potential.
Compact, low-mass design contributes to greater thermal efficiency.
Designed to meet or exceed Federal emissions requirements for OBDII Federally registered vehicles.

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Fits this vehicle

Audi S4 2004-2009

Product Details

Starting with its highly corrosion-resistant stainless steel construction, this MagnaFlow Direct-Fit Catalytic Converter is built to last. It's specifically designed for the 2004-2009 Audi S4 with the 4.2L engine, ensuring it functions just like the original equipment your car came with. MagnaFlow uses advanced 3D scanning during their research and development to make sure the fit and form are spot on, so you can be confident it will integrate seamlessly into your exhaust system.

The free-flowing, mandrel-bent tubing is key here, helping to maintain factory performance and fuel efficiency. MagnaFlow replicates the OE spun body design, and the single laser fusion weld significantly reduces the chance of leaks. This compact, low-mass design also contributes to better thermal efficiency. Because it's a direct-fit unit, installation is made much simpler, with no cutting or welding required – just use the proper tools and the included gaskets and hardware.

This converter meets or exceeds Federal emissions requirements set forth by the EPA for OBDII Federally registered vehicles. Please note that this converter is not CARB approved and cannot be shipped to California.