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MagnaFlow 10-11 Cayenne V8 4.8 OEM Underbody Direct Fit Converter

SKU: MAG21-589

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow 10-11 Cayenne V8 4.8 OEM Underbody Direct Fit Converter

SKU: MAG21-589

Catalytic Converters

MAG Converter Direct Fit...

A$2,499.61
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

OEM Grade

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-589. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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 2010-2011 Porsche Cayenne 4.8L. MagnaFlow 21-589 includes (1) Flange Gasket and interchanges with OE parts 958 113 021 00, 958 113 021 01, 958 113 021 AX. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Additional Information

Magnaflow OEM Grade Direct-Fit Catalytic Converter

Product Overview

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-589. 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 specifically for the 2010-2011 Porsche Cayenne and interchanges with OE parts 958 113 021 AX and 958 113 021 00, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Additional Application Notes
• OEM Grade Series; 2.5 in. Tubing; 4.375 in. Inlet/2.5 in. Outlet; Round; Overall L-20.125 in.;Not Legal For Sale Or Installation In CA/CO/NY

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:12:35

Data: v4.2 - Upd: 2026-11-08 04:14:05

Features

  • Durable 308 stainless steel MIG welds
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Expertly Crafted To Replicate Oem-Like Flow Dynamics/Maintaining Factory Performance And Fuel Efficiency
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Mandrel Bent Tubing Retains Oem-Like Design And Geometry
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Simplifies Installation With Essential Gaskets And Hardware Being Included In The Box
  • Your Trusted Source For EPA-Compliant Catalytic Converters
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Air Tube Adaptable:No
Air Tube Count:0
Body Height:5
Body Length:6.5
Body Material:Stainless Steel
Body Shape:Round
Body Type:Spun
Body Width:5.000 in.
CARB Executive Order Number:Not Applicable
Catalytic Converter Air Tube Adapter:No
Clamp Included:No
Clamps Included:No
Converter Quantity:1
Core Substrate Material:Ceramic
Description:OEM Grade Direct-Fit Catalytic Converter
Finish:Stainless Steel
Gasket Included:Yes
Grade Type:Regular
Hangers Included:No
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment:Bolt-On
Inlet Diameter:4.375
Inlet Gasket Included:No
Inlet Inside Diameter:4.375
Inlet Mounting Hardware Included:No
Inlet Quantity:1
Inlet Type:Bolt-On
Main Piping Diameter:2.500 in.
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment:Bolt-On
Outlet Diameter:2.5
Outlet Gasket Included:Yes
Outlet Inside Diameter:2.5
Outlet Mounting Hardware Included:No
Outlet Outside Diameter:2.500 in.
Outlet Quantity:1
Outlet Type:Bolt-On
Overall Length:20.5
Oxygen Sensor Location:Post Converter
Part Number:mag21-589
Pipe Material:Stainless Steel
Sensor Port Count:1
Series:OEM Grade
Substrate Material:Ceramic
Substrate:Ceramic
Tube Material:Stainless Steel
Type:Direct-Fit
Universal Or Specific Fit:Specific

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance
StreetFX SKU mag21-589
SFX Item ID 4289512
Accounting SKU mag-21-589
Manufacturer SKU 21-589
Manufacturer UPC 888563159355
Alternative References 21-589, MFL21-589, MPE-21-589

Catalytic Converter, Direct-Fit, Stainless Steel Case, 20.125 in. Overall Length, Front Left Position, Porsche, Cayenne, 4.8L, Each

MagnaFlow OEM Grade Federal/EPA Compliant direct-fit catalytic converters provide your vehicle with high-emission compliance, the latest technology, and premium-grade components. Along with those benefits, you also get their industry-leading warranties, so you can drive with confidence. MagnaFlow converters are designed to the exact original equipment specifications, while being engineered to keep the "Check Engine Light" off.

Features include:
• Stainless steel construction
• CNC-precision robotic manufacturing
• Meets or exceeds EPA emissions requirements
• Hassle-free, OE-like fitment tailored to your specific application
• Limited 5-year/50,000 mile warranty on construction
• Limited 25,000 mile warranty on emissions

Product Attributes
BrandMagnaFlow
Manufacturer's Part Number21-589
Part TypeCatalytic Converters
UPC888563159355
Inlet QuantityStock
Converter Inlet AttachmentStock flange
Outlet QuantityStock
Converter Outlet AttachmentStock flange
Converter Case MaterialStainless steel
Converter Overall Length (in.)20.13
RemanufacturedNo
AIR TubeNo
Heat ShieldNo
QuantitySold individually.
NotesDesigned to replace OEM part number 958 113 021 AX.

Compatibility

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