MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-551

MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter - Main image
$1038.72 $1623 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-551. 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. MagnaFlow 21-551 interchanges with OE parts 166 490 79 00, 166 490 85 14. 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: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Andrew ★★★★★

After struggling with an intermittent P0420 code for months, this direct-fit converter finally shut the check engine light off permanently. The mandrel-bent tubing made installation straightforward, and it’s holding up well against road salt so far.

Henry ★★★★★

The corrosion-resistant coating on this unit gave me peace of mind for the salty winter roads ahead, and it bolted right up to my truck's existing exhaust without any hassle. I've had the check engine light stay off for over a month now, which is exactly what I needed.

David ★★★★★

The mandrel-bent tubing made installation straightforward on my truck, and the check engine light has stayed off for two weeks now. Build quality feels solid, and it's noticeably less restrictive than the old clogged one.