MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2002-2004 Audi A6 3.0L / 2002-2004 Audi A6 Quattro 3.0L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51437

MagnaFlow 2002-2004 Audi A6 3.0L / 2002-2004 Audi A6 Quattro 3.0L OEM Grade - Main image
$393.72 $579 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51437. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2002-2004 Audi A6 3.0L & 2002-2004 Audi A6 Quattro 3.0L. MagnaFlow 51437 interchanges with OE parts 4B0 253 011 FX, 4B0 253 011 QX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Julian ★★★★★

I was worried about getting a CEL after replacing mine, but this converter kept it off even after the first drive. Fit perfectly onto my 2004 A6 Quattro, no need to modify the pipes.

Penelope Q. ★★★★★

The mandrel-bent tubing made routing the new converter a breeze, and the fit was spot-on for my Quattro's exhaust. I've had zero issues with the check engine light since installation, and the corrosion-resistant finish looks great under there.

Christopher J. ★★★★★

Installation was straightforward on my 2003 Quattro, and the direct-fit design saved me from any extra welding. Check engine light stayed off after the swap, and it's been running clean for about a month now.