MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2004-2006 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51966

MagnaFlow 2004-2006 Audi A8 Quattro 4.2L OEM Grade Federal / EPA Compliant - Main image
$471.01 $703 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51966. 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 2004-2006 Audi A8 Quattro 4.2L. MagnaFlow 51966 includes (1) Torca Clamp and interchanges with OE parts 4E0 254 550 PX, 4E0 254 550 TX, 4E0 254 551 X. 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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Standard Shipping · United States: $0.00

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)

Hannah ★★★★★

No more check engine light after a few drives, and the fit on my A8 was spot-on—the mandrel-bent tubing made the swap feel factory. It’s a solid direct-fit; I’d just plan for a couple extra hours if your bolts are rusty.

Amelia Z. ★★★★★

The mandrel-bent tubing made for a clean install under my A8, and the check engine light has stayed off through two weeks of daily driving. Fits perfectly.

Sebastian ★★★★★

Bolted straight on in an afternoon with zero modifications, and the mandrel-bent tubing keeps the flow smooth without that tinny rasp my old setup had. Been driving two weeks now, no codes, and the corrosion-resistant shell still looks brand new under the car.