SKU: 9798219147

HPR Ultraflex - BMW 8HP AWD to RWD Conversion kit - 1350

Sale price$3599.55 Regular price$3999.50
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

HPR Ultraflex - BMW 8HP AWD to RWD Conversion kit - 1350BMW 8HP AWD to RWD Conversion Kit A complete, high quality solution for converting 8HP BMW AWD transmissions (8HP70X and related variants) to a RWD configuration. The HPR 8HP AWD to RWD Conversion Kit is engineered with practicality and performance in mind. Unlike many alternatives on the market that require modification or clearancing to fit within the transmission tunnel, this kit features a compact design with repositioned outer mounting point on

BMW 8HP AWD to RWD Conversion Kit

A complete, high-quality solution for converting 8HP BMW AWD transmissions (8HP70X and related variants) to a RWD configuration.

The HPR 8HP AWD to RWD Conversion Kit is engineered with practicality and performance in mind.

Unlike many alternatives on the market that require modification or clearancing to fit within the transmission tunnel, this kit features a compact design with repositioned outer mounting point on the left side. This ensures improved clearance and a straightforward installation.

In addition to the conversion components, the kit includes our full UltraFlex rear mount system. This comprises durable bobbin mounts (Shore 60A) along with all necessary hardware, delivering excellent vibration control and drivetrain stability. The UltraFlex mount is also fully compatible with all HPR chassis-specific crossmembers, ensuring seamless integration across a wide range of builds.

The flat-profile bobbin mounts in the Ultraflex kit simplify custom crossmember fabrication, saving time while ensuring precise fitment.

The UltraFlex mount adjustability makes it easy to precisely dial in your drivetrain angles, which is critical for a successful swap without any vibration/NVH issues. 

(See the HPR Pro Tip in the installation guidelines for more details.)

Designed to offer both flexibility and value, this package combines premium engineering with competitive pricing, making it one of the best-value solutions available.

 

See Installation Guideline

 


Confirmed Fitment:

  • 8HP70X N57 (1st Gen)
  • 8HP70X N63 (1st Gen)
  • 8HP50 B48 / B58 (2nd Gen)
  • 8HP75X B57 (2nd Gen)
  • 8HP70X N63 (2nd Gen)
  • 8HP51 B58 (3rd Gen)
  • 8HP76X B57 (3rd Gen)
  • 8HP76X S58 (3rd Gen)
  • 8HP90/95X N73 / N74 (2nd Gen)

Kit Includes:

  • BMW 8HP AWD to RWD Adapter
  • HPR 1350 Output Flange (pre-assembled with high-speed bearing)
  • UltraFlex Rear Mount
  • Bobbin Mounts (Shore 60A)
  • Complete Bolt & Hardware Kit

Note:
Requires a small modification to the transmission housing. Please refer to the installation guidelines and video for further details.

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: 9798219147

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dwaine dickson
Draper, US
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Great so ks
Very good socks
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Jennifer Woods
Lexington, US
★★★★★ 1
Disappointing
Not what I was hoping for. I have a size 11 foot, so they fit fine. They are difficult to walk in and if your balance is bad, you run a high risk of falling. I wear mine at night so the majority of the time it is fine until I have to get up in the middle of the night
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Reviewed in the United States on January 20, 2026
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Rena
Boise, US
★★★★★ 5
Serves its purpose
If you can get past the texture of the silicone these will work wonders for your feet. There’s no odor, easy to put on but they are cut small. There’s no moisture it just feels moist because of the silicone. They are very soft and durable.
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Reviewed in the United States on January 11, 2026
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Karen
Grantham, US
★★★★★ 3
Dissatisfied
Didn't like the socks at all. The silicone in them made my feet sweat and couldn't wiggle my toes at all. Gloves were okay, received them with holes between the fingers, only able to wear each twice.
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OhhDJ
Houston, US
★★★★★ 2
too small
I saw these and instantly thought they would be amazing! I was hoping for just that. I received them today and tried them right away. I love the gel feel but im not really liking the way they kept rolling off. They're a bit too small id say and when walking they roll off from the back. I didnt think my foot was other than average? Maybe? Im a size 7 in women's shoes.
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Reviewed in the United States on September 12, 2025

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