MagnaFlow 51006 OEM Grade Universal Catalytic Converter 2.5in Center/Center EPA For Sale

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Part Brand: Magnaflow

Part Number: 51006

• Universal fit — not vehicle-specific. Compatible with any vehicle running 2.5 in. exhaust piping that requires an OBD-II Federal/EPA compliant catalytic converter. Cutting and welding are required during installation. Verify your vehicle\'s VECI label for Federal or California emissions designation before purchase.

• Universal design — cutting, welding, and tube-bending are required for installation; this converter does not bolt directly onto any factory exhaust system
• Federal/EPA compliant — NOT legal for sale, installation, or use in California, Colorado, or New York
• Designed for OBDII vehicles (1996 and newer) with Federal or California-spec emissions systems registered outside of California
• OEM Grade designation — formulated for vehicles with California emissions systems operating in Federal (non-California) markets; contains higher precious metal loading than Standard Grade converters
• No O2 sensor ports included — if your application requires an O2 sensor bung, it must be welded on separately during installation
• No AIR tube adapter — not compatible with secondary air injection systems
• Gaskets, clamps, and hangers are NOT included
• Tuning may be required after installation on OBDII-equipped vehicles
• Professional installation by a qualified exhaust shop is strongly recommended

• OEM Grade Federal/EPA compliant design meets or exceeds Federal emissions requirements for OBDII vehicles — formulated with higher precious metal loading for superior conversion efficiency compared to Standard Grade converters
• Engineered for vehicles with California-spec emissions systems operating in Federal markets, ensuring effective emissions reduction even on stricter-calibrated engine systems
• Clamshell body construction features a continuous seam weld for superior structural integrity and thermal insulation over traditional stamped body designs
• Ceramic honeycomb substrate provides maximum catalyst surface area, high conversion efficiency, and strong thermal durability across a wide operating temperature range
• Ribbed body design minimizes expansion and distortion under heat cycles while holding the ceramic catalyst in proper alignment and protecting the cushioning mat from direct exhaust gas exposure
• Seam weld positioned close to the converter body — not along the edge — prevents accordion-style expansion that can allow the catalyst substrate to shift
• Funneled inlet and outlet cones with a 1/2 in. lap joint design prevent the neck from intruding into the converter body, ensuring unrestricted exhaust flow
• Integrated stainless steel heat shield attached to the body provides thermal protection for surrounding components and adds structural stability
• Heavier-gauge stainless steel construction used tip-to-tip — no inferior mixed materials or weight reductions
• Expertly formulated catalyst blend maximizes emissions conversion efficiency to keep the check engine light off
• Made in the USA and backed by MagnaFlow\'s 5-year construction / 25,000-mile emissions warranty for Federal vehicles

• Converter Type: 3-Way (HC, CO, NOx reduction)
• Series: OEM Grade Federal/EPA Compliant Universal
• Fit Type: Universal (Weld-On Installation Required)
• Body Type: Clamshell
• Body Shape: Oval
• Body Length: 12.0 in.
• Body Width: 5.625 in.
• Body Height: 3.75 in.
• Overall Length: 16.0 in.
• Inlet Diameter: 2.5 in.
• Outlet Diameter: 2.5 in.
• Inlet/Outlet Configuration: Center In / Center Out
• Inlet/Outlet Attachment: Weld-On (Slip Fit)
• Inlet Quantity: 1
• Outlet Quantity: 1
• O2 Sensor Ports: None (0) — bung must be added separately if required
• AIR Tube: Not Adaptable
• Substrate Material: Ceramic Honeycomb
• Body Material: Stainless Steel
• Tube Material: Stainless Steel
• Heat Shield: Yes (Attached)
• Clamps Included: No
• Gaskets Included: No
• Hangers Included: No
• CARB Certified: No (Federal/EPA Only)
• Emissions Compliance: Federal EPA / OBDII
• Warranty: 5-Year Construction / 25,000-Mile Emissions (Federal Vehicles)
• Country of Origin: USA

• 1x MagnaFlow 51006 OEM Grade universal catalytic converter with integrated stainless steel heat shield

The MagnaFlow 51006 is an OEM Grade Federal/EPA compliant universal catalytic converter designed for OBDII vehicles (1996 and newer) running 2.5-inch exhaust piping and registered outside of California. Built to OEM Grade standards, this converter carries a higher precious metal loading than Standard Grade alternatives, making it specifically suited for vehicles equipped with California-spec emissions systems operating in Federal markets. The result is a converter that delivers superior catalytic conversion efficiency for HC, CO, and NOx reduction — helping eliminate check engine light codes caused by catalytic converter failure while maintaining proper emissions compliance.

The 51006 uses MagnaFlow\'s clamshell body construction with a continuous seam weld for superior structural rigidity and thermal insulation. The oval body houses a ceramic honeycomb substrate with a ribbed exterior that prevents heat-induced distortion and keeps the catalyst in proper alignment throughout its service life. The funneled inlet and outlet cones use a 1/2-inch lap joint design that keeps the pipe necks from intruding into the converter body, preserving unrestricted exhaust flow. An integrated stainless steel heat shield is factory-attached to protect surrounding components from radiated heat.

Because this is a universal converter, installation requires cutting, welding, and potentially tube-bending — professional installation by a licensed exhaust shop is strongly recommended. There are no O2 sensor ports included; if your application requires an oxygen sensor bung, it must be welded on separately. No clamps, gaskets, or hangers are included. This converter is not CARB certified and is not legal for use in California, Colorado, or New York. Made in the USA and backed by a 5-year construction warranty and 25,000-mile emissions warranty for Federally registered vehicles.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

• Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
• Canada customers - If does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

• Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.

• Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
• Any returns received installed, mounted, used or missing components will be subject to return fee\'s.

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