SKU: 2147502648

2009-2016 BMW Z4 Direct-Fit Catalytic Converter 21-170 Magnaflow

Sale price$533.70 Regular price$593.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

2009-2016 BMW Z4 Direct-Fit Catalytic Converter 21-170 MagnaflowOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 21 170. 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 OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-170. 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 2009-2016 BMW Z4 and interchanges with OE part 18 30 7 647 041. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation.

Note : Not For Sale in California

Interchange:
Brand  Interchange Part Number
BMW 18 30 7 647 041
BMW 18307647041
BMW 18 30 7 647 041
BMW 18307647041

Application:

Year Make Model Submodel Engine Size
2009 - 2016 BMW Z4 3L/L6

Specs:

Air Tube Adaptable No
Sensor Port Count 2
Overall Length (In.) 17.75
Mounting Hardware Included Yes
Type Direct-Fit
Subtitle Federal / EPA Compliant
Heat Shield Attached No
Title OEM Grade Direct-Fit
Series OEM Grade
Clamp Included No
Outlet Attachment Bolt-On
Inlet Attachment Clamp-On
Oxygen Sensor Location Pre and Post Converter
Material Stainless Steel
Finish Stainless Steel
Converter Quantity 1
Gasket Included Yes
Substrate Material Ceramic
Main Piping Diameter 2.5
Hangers Included No
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: 2147502648

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4.3 ★★★★★
Based on 24 reviews
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T
Verified Purchase
Tj
Houston, US
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
J. Randle
Whiting, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
V
Verified Purchase
Vonda Kioultzopoulos
Los Angeles, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
T
Verified Purchase
Tessy
Waukegan, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
M
Verified Purchase
Ms. Mac
Natrona Heights, US
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

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