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MagnaFlow 5551237 California CARB Compliant Direct-Fit Manifold Catalytic Converter

(Chevrolet Silverado 2500 HD 2017-19, Silverado 3500 HD 2017-19; Ram 2500 2011-23, 3500 2011-23; GMC Sierra 2500 HD 2017-19 + 7 more models)

Manufacturer

Picture for manufacturer Magnaflow

Part Number

5551237
8 reviews
Sale Price

$2,301.00

4 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The MagnaFlow 5551237 is a California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter engineered as a precise OE replacement. Designed to keep the check engine light off and restore proper exhaust function, this converter meets and exceeds California Air Resources Board (CARB) standards, making it legal for use in California and all other CARB-restricted states.

Key Features:

  • Direct-Fit Installation: Bolt-on OE replacement — no cutting or welding required; installs using standard hand tools
  • OE Spun Body Design: Replicates the original equipment spun body construction for a proper fit and optimal exhaust flow
  • Single Laser Fusion Weld: Compact, precision weld design significantly reduces the risk of exhaust leaks
  • Free-Flowing Mandrel-Bent Tubing: Maximizes exhaust flow efficiency and maintains performance
  • Stainless Steel Construction: Highly corrosion-resistant stainless steel body ensures long-lasting durability
  • Low-Mass Design: Compact, lightweight construction promotes greater thermal efficiency for faster catalyst light-off
  • Includes Gaskets: Gaskets are included to help ensure a proper, leak-free seal during installation
  • CARB Certified: Meets or exceeds California Air Resources Board requirements; certified for legal use in CA and all CARB-restricted states
  • 3D-Scanned Fitment: Developed using MagnaFlow's state-of-the-art metrology department with the latest 3D scanning technology to guarantee precise OE-matching fit

MagnaFlow's 5551237 manifold catalytic converter is built to restore your vehicle's emissions performance and exhaust integrity with confidence. CARB Executive Order (EO) certification ensures compliance with strict emissions regulations, giving you peace of mind for smog checks and long-term reliability.

Products specifications

Fits

Chevrolet Silverado 2500 HD 2017-19, Silverado 3500 HD 2017-19; Ram 2500 2011-23, 3500 2011-23; GMC Sierra 2500 HD 2017-19, Sierra 3500 HD 2017-19; BMW X5 2007-10; Lexus LS400 1998; Audi A8 Quattro 2004-10, S8 2007 + 2 more models

Subtitle

CARB Compliant Manifold Catalytic Converter

Heat Shield Attached

No

Type

Direct-Fit

Sensor Port Count

2

Inlet Type

Flanged

Clamps Included

No

Substrate Material

Ceramic

Outlet Quantity

1

Inlet Quantity

4

Converter Body Material

Stainless Steel

Outlet Mounting Hardware Included

No

Grade Type

Regular

Finish

Stainless Steel

Oxygen Sensor Location

Pre and Post Converter

Inlet Gasket Included

Yes

Series

California

Converter Body Length

11.875

Air Tube Count

0

Overall Length

30

Outlet Type

Non-Flanged

Outlet Gasket Included

No

Type

One-Piece

Converter Tube Material

Stainless Steel

Inlet Mounting Hardware Included

No

Best price and honest shipping updates.

found what I needed

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After a brief delay on my part, the transaction went terribly smooth!

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very smooth

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