SKU: 22899404023

2011 Chevrolet Silverado 2500HD Direct-Fit Catalytic Converter 4551252 Magnaflow

Sale price$1737.90 Regular price$1931.00
Save 10%

Pay in installments of $482.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2011 Chevrolet Silverado 2500HD Direct-Fit Catalytic Converter 4551252 MagnaflowOverview: Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 4551252. 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 4551252. 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 2011-2015 Chevrolet Silverado 2500 HD, 2011-2015 GMC Sierra 2500 HD, and additional vehicles. Hardware is included to eliminate the hassle of working with corroded factory parts. 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
2011 - 2015 GMC Sierra 2500 HD 6L/V8
2011 - 2015 GMC Sierra 3500 HD 6L/V8
2011 - 2015 Chevrolet Silverado 2500 HD 6L/V8
2011 - 2015 Chevrolet Silverado 3500 HD 6L/V8

Specs:

Air Tube Adaptable No
Outlet Attachment Bolt-On
Overall Length (In.) 62.875
Outlet Quantity 1
Mounting Hardware Included Yes
Inlet Quantity 2
Heat Shield Attached No
Type Direct-Fit
Title California Direct-Fit
Subtitle California / CARB Compliant
Substrate Ceramic
Series California
Oxygen Sensor Location Pre and Post Converter
Outlet Diameter (In.) 3.5
Material Stainless Steel
Body Height (In.) 4
Main Piping Diameter (In.) 3
Inlet Diameter (In.) 3
Inlet Attachment Bolt-On
Hangers Included Yes
Gasket Included No
Finish Stainless Steel
Converter Quantity 2
Clamp Included Yes
Body Width (In.) 4
Body Type Spun
Body Shape Round
Body Length (In.) 10.75
Sensor Port Count 4
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: 22899404023

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shanna Clark
Lowell, US
★★★★★ 5
So cute
Color: Blue, Color: Blue
These are so soft and fuzzy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
S
Verified Purchase
sarah
Natrona Heights, US
★★★★★ 5
Soft & fluffy. Stuffy arm rest.
Color: Purple, Color: Purple
Soft and fluffy & my fav color purps. Now I'm looking for other purple accessories to go with my 2021 Honda CRV. I don't think this cover would be be enough for a large SUV arm rest such as a Navigator... But yea, order if you want some color & funk in the ride
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
A
Verified Purchase
Amy
Charlottesville, US
★★★★★ 1
Return refund impossible to receive also it’s tacky looking
Color: Black
First off this item said it was fit, but it did not second of all I went to return it and they could only be returned to the original payment method my credit card. My bank is not showing anything. Amazon is zero help trying to say it went back on a gift balance, which I have photo proof that both are incorrect. I tried to reach out to the seller and they were also zero help so I advise one not to buy this because it’s small and cheap looking too you can’t get your refund back.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
B
Verified Purchase
Biff Worthington
West Palm Beach, US
★★★★★ 4
It’s so so but ok
Color: Champagne
The color is good and the hair is not as silky as my car seat or seatbelt covers. Also the hairs really get matted. It may just be from elbows but it gets so matted it is hard to undo. And when you do get it good it happens right again and frankly looks bad and unkempt. Other than that it fits right and is more comfy than original so I leave it on. Even with vacuum at car wash the mats stay so it seems eventually it will be too much. I have had it about a month. Maybe a shorter pile is a better option for armrest, like shearling pile. I’ll try that when this one is too far gone. It wasn’t expensive and is still worth the money to not have a blazing hot armrest so I m good for now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
S
Verified Purchase
shari morgan
New York, US
★★★★★ 3
🙂‍↔️
Color: Light Pink, Color: Light Pink
The color is beautiful. Is soft, but it runs very short doesn’t fit my car. I’ve had it for six months and now it looks like a dirty dog lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026

recommand products