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MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, rather than meets, the highest standards of product performance and efficiency in the industry.
Key Features
- MagnaFlow uses both Ceramic and Metallic substrates with different combinations of cell density and wall thickness to meet vehicle specific requirements.
- MagnaFlow Universal Catalytic Converters form the basic building blocks for a comprehensive line of direct-fit applications.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2001-2006 | Chevrolet | Silverado 2500 HD | Base, LS, LT, WT |
| 2006 | Chevrolet | Silverado 3500 | LS, LT, WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS, LT, WT |
| 2000-2008 | Chevrolet | Suburban 2500 | Base, LS, LT, LTZ |
| 2000-2001 | Dodge | Ram 1500 | Laramie, ST, Sport, WS |
| 2000-2003 | Dodge | Ram 1500 Van | Base |
| 2000-2003 | Dodge | Ram 2500 Van | Base |
| 2000-2003 | Dodge | Ram 3500 Van | Base |
| 2001-2006 | GMC | Sierra 2500 HD | Base, SL, SLE, SLT, WT |
| 2006 | GMC | Sierra 3500 | SL, SLE, SLT, WT |
| 2007 | GMC | Sierra 3500 Classic | SL, SLE, SLT, WT |
| 2000-2008 | GMC | Yukon XL 2500 | SLE, SLT |
Specifications
| Brand | Magnaflow |
|---|---|
| Manufacturer Part Number | 99659HM |
| Product Type | Catalytic Converter Universal |
| Fitment Type | Vehicle Specific |
| Shipping Weight | 3.6 Pounds |
| GTIN | 841380034212 |
| Condition | New |
What's Included
One new Magnaflow catalytic converter universal identified by manufacturer part number 99659HM. 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 Univ 2.25in Inlet/Outlet Center/Center Round 3in Body L x 5in W x 8.75in Overall L
- MagnaFlow Conv Univ 2.25in Inlet/Outlet Center/Center Round 9in Body L x 5.125in W x 13in Overall L
- MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Oval 12in Body L x 6.5in W x 16in Overall L
Frequently Asked Questions
Will this Magnaflow product fit my 2001-2006 Chevrolet Silverado 2500 HD?
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 99659HM. 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.
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