MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2009-2016 BMW Z4 3.0L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-171

MagnaFlow 2009-2016 BMW Z4 3.0L OEM Grade Federal / EPA Compliant Direct-Fit - Main image
$394.02 $597 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-171. 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 2009-2016 BMW Z4 3.0L. MagnaFlow 21-171 includes (1) Flange Gasket, (1) Torca Clamp and interchanges with OE parts 18 30 7 597 137, 18 30 7 647 049. 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: 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)

Ellie ★★★★★

Installed this on my 2009 Z4 and the check engine light stayed off right from the start. The mandrel-bent tubing made it a breeze to fit into the existing exhaust, plus the sound is perfectly stock.

Grace ★★★★★

The corrosion-resistant coating on this converter is holding up perfectly in our rainy climate, and it bolted onto my Z4 without any modifications needed. I’ve driven about 200 miles since installing it, and the check engine light hasn’t flickered once.

Amelia W. ★★★★★

My mechanic said the mandrel-bent tubing made installation a breeze, and I haven't seen the dreaded check engine light since. It’s been two weeks and the exhaust smells cleaner too, which is a nice bonus.