SKU: 87139295692

2009-2016 BMW Z4 Direct-Fit Catalytic Converter 21-172 Magnaflow

Sale price$270.00 Regular price$300.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

2009-2016 BMW Z4 Direct-Fit Catalytic Converter 21-172 MagnaflowOverview: Keep the check engine light off with MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 21 172. 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 21-172. 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 7 647 051. 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 7 647 051
BMW 18307647051
BMW 18 30 7 647 051
BMW 18307647051

Application:

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

Specs:

Air Tube Adaptable No
Sensor Port Count 0
Overall Length (In.) 46.375
Mounting Hardware Included Yes
Type Direct-Fit
Heat Shield Attached No
Title OEM Grade Direct-Fit
Subtitle Federal / EPA Compliant
Series OEM Grade
Clamp Included Yes
Outlet Attachment Clamp-On
Inlet Attachment Bolt-On
Material Stainless Steel
Finish Stainless Steel
Converter Quantity 1
Substrate Material Ceramic
Gasket Included Yes
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: 87139295692

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4.8 ★★★★★
Based on 23 reviews
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Verified Purchase
CSnc
Pawtucket, US
★★★★★ 5
The Mitt is it.
I ordered the applicator because the Poli Glow Kit on hand was ordered and received a couple of years ago and it had the old chamois covered rectangular applicator. I could tell by looking that the mitt was the better solution. Also, the mitt was described well in an online video, so using it was easy to learn. The results were fantastic and I am very pleased with it. The only thing I would change is to add some more information on how often to replenish the mitt and with how much Poli Glow liquid. I wasn't sure if I was skimping or wasting the material. As I approached halfway, I couldn't tell if I was going to run out before I finished, so I tried to be as frugal as possible. Turns out, I had liquid left over.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2016
M
Verified Purchase
marian page smith
Louisville, US
★★★★★ 5
Work perfect
Work real good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
K
Verified Purchase
Kim Kietzman
Charlottesville, US
★★★★★ 5
Didnt need
Great product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
J
Verified Purchase
Jim H.
Bozeman, US
★★★★★ 4
Works much better than the original applicator which left streaks and overlaps
Works much better than the original applicator which left streaks and overlaps. Much easier to use on contours and crevices.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2014
R
Verified Purchase
Rev J.
Birmingham, US
★★★★★ 5
Works well
Good applicator for poli glow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025

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