Click to zoom in
The MagnaFlow 3.00" Center/Center 6" Spun Body Universal Catalytic Converter is a compact, high-flow emissions solution ideal for custom exhaust builds, turbo applications, engine swaps, and replacement of failed factory catalytic converters. Its short 6-inch spun stainless steel body with true 3.00-inch center-to-center inlet and outlet placement makes it perfect for tight chassis layouts where longer converters won't fit.
Key Features
- 3.00" Inlet/Outlet – Full 3-inch mandrel-bent necks for unrestricted flow and easy welding.
- Compact 6" Body Length – Fits tight engine bays and custom applications where space is limited.
- Spun Metallic Substrate – Faster light-off and higher efficiency than ceramic cores.
- 409 Stainless Steel – Fully welded for corrosion resistance and durability.
- Maintain 1–2 inches clearance from heat-sensitive components.
- Ribbed Body Construction – Reduces thermal expansion and prevents substrate damage.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2009-2010 | Ford | F-350 | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
| 2020-2022 | Ford | F-350 | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
| 2020-2021 | Ford | Transit-150 | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
| 2020-2021 | Ford | Transit-250 | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
| 2020-2021 | Ford | Transit-350 | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
| 2020-2021 | Ford | Transit-350 HD | Confirm engine, body configuration, emissions package, and every current Magnaflow application note |
Specifications
| Brand | Magnaflow |
|---|---|
| Manufacturer Part Number | 51299 |
| Product Type | Catalytic Converter Universal |
| Fitment Type | Vehicle Specific |
| Material | Stainless steel |
| Shipping Weight | 7.8 Pounds |
| GTIN | 888563181257 |
| Condition | New |
What's Included
One new Magnaflow catalytic converter universal identified by manufacturer part number 51299. Gaskets, clamps, adapters, sensors, hardware, tips, wiring, and fabrication materials are included only when expressly supplied for this exact part number.
About Magnaflow
Magnaflow develops automotive exhaust systems, catalytic converters, mufflers, pipes, tips, and installation hardware for vehicle-specific and universal applications. Selection, emissions eligibility, sound, dimensions, and installation requirements remain exact-part-number specific.
Related Magnaflow Products
- Shop all Magnaflow products
- MagnaFlow Conv Universal 2.25 inch T2 Rear
- MagnaFlow Conv Universal 2.5 inch T2 Rear
- MagnaFlow Conv Universal 2.5 inch T2 Rear
Frequently Asked Questions
Will this Magnaflow product fit my 2009-2010 Ford F-350?
That vehicle range is listed for this exact part number, but confirm the engine, body configuration, emissions package, factory exhaust layout, and every current Magnaflow application note before ordering.
Is this catalytic converter legal for my vehicle and registration state?
Converter legality depends on the exact vehicle, engine, emissions package, registration state, certification, and test group. Match every current Magnaflow application and emissions note before ordering.
Does a direct-fit converter require cutting or welding?
A true direct-fit converter is designed around factory connection points, while a universal converter normally requires fabrication. Follow the instructions for this exact part number and inspect all flanges, sensors, gaskets, and clearances.
Installation Instructions
Follow the current Magnaflow instructions and vehicle service information for part number 51299. Work on a cool exhaust, support the vehicle safely, confirm all interfaces and clearances, align and support the complete assembly before final tightening or welding, test for leaks, and inspect the installation again after the first heat cycle.
Catalytic Converter Universal
Catalytic Converter Universal parts and accessories are stocked at Black Ops Auto Works for street builds, track cars, trucks, and custom fabrication. Shop universal high-flow catalytic converters, CARB-approved converters, EPA-compliant cats, weld-in converters, stainless converter bodies, O2 sensor ports, exhaust reducers, and custom exhaust repair parts with application details for the systems and platforms that need them. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 121 Catalytic Converter Universal SKUs across inlet size, outlet size, catalyst type, body length, emissions approval, and custom exhaust fabrication. What This Universal Catalytic Converter Collection Covers Universal catalytic converters are weld-in exhaust components for custom builds, repair work, and systems where a direct-fit converter is not being used. This collection includes high-flow, EPA-compliant,...
View Catalytic Converter Universal Products
Exhaust Systems
Shop performance exhaust systems, cat-backs, axle-backs, headers, mufflers, and exhaust tips at Black Ops Auto Works. Compare options from Borla, CORSA, Solo Performance, AWE, MagnaFlow, MBRP, Kooks, Akrapovic, Invidia, and other brands. Find complete systems and individual components for muscle cars, performance SUVs, trucks, imports, and European vehicles. Cat-Back and Axle-Back Exhaust Systems Choose the exhaust section that matches your project. Cat-back systems generally replace the exhaust downstream of the catalytic converter, while axle-back systems replace the rear section. Exact connection points and package contents vary by vehicle. Compare muffler design, pipe diameter, exit location, tip configuration, and compatibility with existing exhaust components. Exhaust for HEMI, SRT, Trackhawk, and Hellcat Vehicles This collection includes exhaust options for selected Jeep Grand Cherokee SRT and Trackhawk, Dodge Durango SRT and Hellcat, Dodge Charger, Chrysler 300, and Ram appl...
View Exhaust Systems Products
Magnaflow
Shop Magnaflow exhaust systems, catalytic converters, mufflers, pipes, tips, and installation hardware by exact manufacturer part number and verified vehicle application. Choosing the Correct Magnaflow Product Match the exact part number, complete vehicle application, exhaust layout, dimensions, emissions package, and registration requirements before ordering. Similar-looking exhaust components are not automatically interchangeable. Confirm year, make, model, engine, body or cab configuration, and factory exhaust layout Match federal or California catalytic-converter eligibility when applicable Verify pipe diameter, inlet and outlet orientation, exit location, tip style, and clearances Review every current Magnaflow application and installation note Use professional fabrication for universal exhaust components when required Related Exhaust Collections Cat-Back Exhaust Systems Direct-Fit Catalytic Converters Universal Catalytic Converters Exhaust Systems and Components Frequentl...
View Magnaflow Products