Catalytic Converter Universal

A catalytic converter is an essential emissions control device, and our universal-fit selection gives you the flexibility to replace a failed converter or upgrade your exhaust system when a vehicle-specific part isn't available. These units are designed for custom fabrication—they don't bolt directly to factory exhaust hangers, so some welding and pipe-fitting is expected. By offering multiple diameters, cell counts, and substrate options, the collection lets you match a converter to your engine's displacement, power level, and local emissions requirements.

  • Inlet/outlet diameter and overall length—match to your exhaust tubing size
  • Cell count and catalyst loading—higher cell counts often improve efficiency; lower counts can support higher flow for performance builds
  • Substrate type—ceramic cores are common for street use, while metallic substrates handle extreme heat and vibration in racing applications
  • Oxygen sensor bung placement—verify whether you need a pre-cat or post-cat sensor port
  • Compliance—confirm that the converter meets the emissions standards in your region before purchase

If you're tackling a custom exhaust, replacing a rusty factory catalyst, or building a track-only setup, a universal converter gives you the core component to finish the job. Check each product listing for exact dimensions, cell count, and included hardware.

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MagnaFlow 59975 universal catalytic converter with 2.25-inch inlet and 409 stainless steel body.

$183.00

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MagnaFlow 59959 3-inch universal catalytic converter with stainless steel housing and metallic core catalyst.

$176.00

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MagnaFlow 59956 2.5 inch universal stainless steel catalytic converter with center-to-center inlet and outlet

$176.00

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MagnaFlow 59955 stainless steel universal catalytic converter with metallic core and 2.25 inch inlet and outlet.

$176.00

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MagnaFlow 59920 OEM Grade universal catalytic converter with 3.5 inch inlet and outlet and a spun stainless steel body.

$214.00

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MagnaFlow 54959 OEM Grade 3-inch universal catalytic converter with stainless steel body and welds

$108.00

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MagnaFlow 54956 stainless steel 2.5 inch universal catalytic converter with center-to-center spun body configuration.

$108.00

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MagnaFlow 54055 409 stainless steel universal catalytic converter with mid-bed sensor port and 2.25-inch openings.

$98.00

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MagnaFlow 54054 OEM Grade stainless steel universal catalytic converter with Federal EPA compliance identification.

$98.00

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MagnaFlow 53956 round spun body universal catalytic converter with 2.5-inch center inlet and outlet

$100.00

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MagnaFlow 53955 round universal catalytic converter with 2.25 inch centered inlet and outlet ports

$100.00

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MagnaFlow 53104 stainless steel universal catalytic converter with high-strength welds for EPA compliance.

$96.00

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MagnaFlow 53035 Standard Grade 2.25 inch spun body universal catalytic converter with single O2 sensor bung

$90.00

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MagnaFlow 53009 stainless steel universal catalytic converter with 3-inch inlet and outlet.

$106.00

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MagnaFlow 53006 Standard Grade universal catalytic converter with 2.5 inch inlet and outlet and stainless steel body.

$106.00

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MagnaFlow 53005 stainless steel universal catalytic converter with 2.25-inch inlet and outlet ports

$106.00

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MagnaFlow 53004 stainless steel universal catalytic converter with 2-inch inlet and outlet.

$106.00

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MagnaFlow 51775 universal catalytic converter with 5-inch spun body and 2.25-inch stainless steel inlet/outlet.

$342.00

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MagnaFlow 51656 stainless steel spun body universal catalytic converter with 2.5 inch center inlet and outlet.

$306.00

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MagnaFlow 51355 round stainless steel universal catalytic converter with 2.25 inch center inlet and outlet

$220.00

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MagnaFlow 51299 OEM Grade 3-inch universal catalytic converter with stainless steel spun body.

$898.00

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MagnaFlow 51209 OEM Grade 3 inch universal catalytic converter in 409 stainless steel with laser fusion welds.

$211.00

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MagnaFlow 51206 OEM Grade universal catalytic converter with stainless steel body and 2.5-inch ports.

$211.00

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MagnaFlow 51205 round universal catalytic converter in 409 stainless steel with 2.25 inch center inlet and outlet.

$211.00

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MagnaFlow 51204 stainless steel 2 inch inlet/outlet round universal catalytic converter

$211.00

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MagnaFlow 51175 stainless steel universal catalytic converter with 2.25 inch angled inlet and fusion welds

$194.00

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MagnaFlow 447206 stainless steel universal catalytic converter with 2.5 inch inlet and outlet.

$425.00

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MagnaFlow 334106 California Grade 2.5-inch universal catalytic converter with stainless steel body.

$212.00

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MagnaFlow 334105 stainless steel 2.25 inch universal catalytic converter with laser fusion welds

$199.00

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MagnaFlow 334016 California Grade universal catalytic converter featuring a 2.5-inch inlet/outlet and stainless steel body.

$198.00

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