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Project 321 G3 Rear Hub- 12x157mm SuperBoost
Project 321 G3 Rear Hub- 12x157mm SuperBoost
Project 321 G3 Rear Hub- 12x157mm SuperBoost
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Project 321 G3 Rear Hub- 12x157mm SuperBoost

Marsoni M251S
Sale price$227.50
Pay 4 payments of $56.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Project 321 G3 Rear Hub- 12x157mm SuperBoostProject321's G3 12x157 Rear Hub Our approach with G3 was to build a hub that strikes the ideal balance between strength, weight, reliability, and efficiency. The result of this design philosophy is a robust and efficient hub set with instant, rock solid engagement. Engagement G3 hubs use the same 72 tooth drive ring and three step magnetically actuated pawls as our proven G2 hubs. To increase engagement without compromising reliability we added two
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  • Fast: 2-3 business days
  • Express: 1-2 business days

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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
4.8 ★★★★★
Based on 943 reviews
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Product Reviews
C
Verified Purchase
Christian Burt
Omaha, US
★★★★★ 5
Easy install
Color: Single Slat Gloss Black, Size: 2023+G20
Fits well. Made of plastic but very easy install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
M
Verified Purchase
Mecha Drew
Chelsea, US
★★★★★ 1
I should have read all the other reviews ...
Color: Single Slat Gloss Black, Size: 2010-2013 E92, Color: Single Slat Gloss Black, Size: 2010-2013 E92
I read all the bad reviews, but I gave it a shot anyways Tabs wont clip in place and fitment is slightly off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
C
Verified Purchase
Charles Sherin
Draper, US
★★★★★ 5
Worth it
Color: Single Slat Gloss Black, Size: 2006-2009 E92
For perfect and looks great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
M
Verified Purchase
Madison
Dallas, US
★★★★★ 5
Very nice quality
Color: Single Slat Gloss Black, Size: 2019-2022 G20
I have a 2022 330i bmw and it fit perfectly! Looks just like photos online and delivered quick!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 27, 2025
N
Verified Purchase
Nick
West Palm Beach, US
★★★★★ 4
Good Item
Color: Single Slat Gloss Black, Size: 2002-2005 E46
Good cost to product ratio, but fitment is a little loose
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026

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