MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 1999-2004 Ford Mustang 3.8L / 2004 Ford Mustang 3.9L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51127

MagnaFlow 1999-2004 Ford Mustang 3.8L / 2004 Ford Mustang 3.9L OEM Grade - Main image
$1489.62 $2013 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51127. 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 1999-2004 Ford Mustang 3.8L & 2004 Ford Mustang 3.9L. MagnaFlow 51127 includes (2) O2 Port Plugs and interchanges with OE parts YR3Z-5F250-AA, YR3Z-5F250-SGL, YR3Z-5F250-SGR. 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 (4.8 / 5 · 5 reviews)

Eva S. ★★★★★

The mandrel-bent tubing made installation under my '04 Mustang straightforward, and the fit was spot-on with no rattles. After a week of driving, the exhaust note sounds just like stock — exactly what I needed for a daily driver.

George ★★★★★

The check engine light went off as soon as I finished the swap, and the corrosion-resistant stainless steel shell already looks like it’ll last through our salty winters. Bolted right up to my 2000 Mustang with no extra fuss.

Joseph ★★★★★

My Mustang's check engine light finally went off after I swapped the old rusted cat for this one. The mandrel-bent tubing made installation straightforward, and everything lined up perfectly. Glad to have that EPA compliance peace of mind too.