2003-06 Chevy Silverado 2500 HD Direct-Fit Catalytic Converter 4551479 Magnaflow
SKU: 63422919037

2003-06 Chevy Silverado 2500 HD Direct-Fit Catalytic Converter 4551479 Magnaflow

Sale price$684.00 Regular price$760.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

2003-06 Chevy Silverado 2500 HD Direct-Fit Catalytic Converter 4551479 MagnaflowOverview: Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 4551479. With features including free flowing mandrel bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body 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

Overview:

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4551479. With features including free-flowing mandrel-bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body 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 spun body 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 2003-2006 Chevrolet Silverado 2500 HD, 2003-2006 GMC Sierra 2500 HD, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to be certified by CARB for legal use in CA/CARB restricted states for the listed vehicles.

Interchange:

Brand  Interchange Part Number

Application:

Year Make Model Submodel Engine Size
2003 - 2006 Chevrolet Silverado 2500 HD 6L/V8
2007 Chevrolet Silverado 2500 HD Classic 6L/V8
2003 - 2006 GMC Sierra 2500 HD 6L/V8
2007 GMC Sierra 2500 HD Classic 6L/V8

Specs:

Body Height (In.) 5
Main Piping Diameter (In.) 3
Inlet Diameter (In.) 3
Inlet Attachment Bolt-On
Hangers Included No
Gasket Included Yes
Finish Stainless Steel
Converter Quantity 1
Clamp Included No
Body Width (In.) 5
Body Type Spun
Body Shape Round
Body Length (In.) 8.75
Sensor Port Count 1
Air Tube Adaptable No
Outlet Attachment Clamp-On
Overall Length (In.) 32.25
Outlet Quantity 1
Mounting Hardware Included Yes
Inlet Quantity 1
Heat Shield Attached No
Type Direct-Fit
Title California Direct-Fit
Subtitle California / CARB Compliant
Substrate Ceramic
Series California
Oxygen Sensor Location Post Converter
Outlet Diameter (In.) 3
Material Stainless Steel
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63422919037

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4.7 ★★★★★
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Product Reviews
C
Verified Purchase
Crissi Germaine
New York, US
★★★★★ 1
Didn’t last longer enough for “before” photos.
This toy lasted about 6secs period! I literally turned my back to grab my phone and when I turned around it was in about 30 pieces and I know for a fact (💩) that my dog swallowed some. Just a waste of money for me and my Labrador.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2023
A
Verified Purchase
Alma Farias
Omaha, US
★★★★★ 5
Decent product. Fun for dogs
Size: Dog Rope Toy - M
My dogs loved this toy so much that they ripped it just after a month use. So durability may be lacking a bit but my dogs loved it. The price can be less since it doesn’t last that long, it’s lightweight so it’s easy to throw, and super fun for dogs.
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Reviewed in the United States on September 6, 2025
K
Verified Purchase
katherine reitnauer
Phoenix, US
★★★★★ 1
Cheaply made
Size: Dog Rope Toy - M
I ordered this toy for my son's dog and in about 10 minutes or less it was falling apart I now have four pieces not a good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
J
Verified Purchase
John Thao
Omaha, US
★★★★★ 5
Fun tug toy that holds up well
Size: Dog Rope Toy - M
We got this rope tug toy for our dog and it’s been a hit. He loves playing tug of war and will happily drag this around the house looking for someone to play with. The rope is thick and feels like real cotton, not that super cheap stiff stuff. It has some give to it but still feels sturdy. So far it has held up well to lots of chewing and tugging. Our dog isn’t a hardcore destroyer, but he definitely tests his toys, and this one is still in one piece. It’s also a nice size, not tiny, so it works well for medium and bigger dogs, but a smaller dog could still enjoy it. Overall, it’s a simple toy that does what you want it to do. Keeps the dog busy, gives them something safe to chew on, and holds up better than most rope toys we’ve tried.
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Reviewed in the United States on January 3, 2026
T
Verified Purchase
T Lance
Massapequa, US
★★★★★ 3
Red flag!!!
Size: Dog Rope Toy - M
Within an hour of giving this toy to my dog, she chewed off the plastic handle and the plastic ball. The worst part is that they came off in very small pieces, some like crumbles. This could have been a serious problem if I had not been watching her and able to take it away.
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Reviewed in the United States on May 12, 2026

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