SKU: 9798219147

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

$3599.55 $3999.50
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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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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4.2 ★★★★★
Based on 17 reviews
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Verified Purchase
Vice cruz
Charlottesville, US
★★★★★ 5
Me encantan
Se ven súper bonitos y recojidos aparte son buenisimos para cortar.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
J
Verified Purchase
Joshua B.
San Leandro, US
★★★★★ 5
Beautiful Acacia Boards That Actually Feel Premium and Thoughtfully Made
I’ve gone through a lot of wooden cutting boards over the years, and these immediately stood out as feeling much higher quality than most sets in this price range. The acacia wood has a really rich, attractive grain pattern and the boards arrived smooth, solid, and well finished with no rough spots, cracks, or cheap “composite wood” feel. What initially caught my attention was the fact that these are marketed as non-toxic and free from mineral oil. Most people don’t think much about what wooden kitchen products are treated with, but I appreciated that these use a natural blend instead of petroleum-based mineral oil. The boards had a very clean, natural wood smell out of the box instead of that chemical/oily smell some cheaper boards have. The three-size setup is honestly perfect for daily kitchen use. I find myself constantly rotating between them: the large board for meal prep and meats the medium board for vegetables the small one for fruit, cheese, garlic, herbs, etc. The engraved food icons are also a surprisingly nice touch because they help keep things organized and reduce cross contamination without looking tacky. A few other things I really liked: They’re lightweight enough to move around easily but still feel sturdy - The wood is gentle on knives - The groove catches juices well - They look nice enough to double as serving boards - Packaging was clean and plastic-free/minimal Like any real wood cutting board, you absolutely need to: - hand wash only - dry them after use - occasionally recondition the wood If you expect dishwasher-safe convenience, these probably aren’t for you. But if you want attractive, natural wood boards that feel healthier and more intentional than cheap plastic boards, these are excellent. Overall, these feel like a genuinely thoughtful kitchen product rather than generic mass-produced boards with a trendy “eco” label slapped on them. Very happy with them so far.
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Reviewed in the United States on May 14, 2026
T
Verified Purchase
Taylor A
Grantham, US
★★★★★ 5
Beautiful in appearance and quality
I've been using these for several months and I love them. They're sturdy and great quality, not to mention so beautiful. They do of course scratch up as you use your knife on them which is to be expected with wood but I plan to give them a little sanding soon and an oiling with the oil they provided. I would definitely recommend.
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Reviewed in the United States on January 7, 2026
A
Verified Purchase
Angel
Los Angeles, US
★★★★★ 5
Ignore the bad reviews, read mine!
Pictures don’t make you think much, but in-person these are beautiful and well made. I’ve been trying to replace everything with cleaner safer alternatives. Honestly I love everything this brand offers and stands for! Some things to think about when you see other peoples negative reviews. Since these cutting boards are all around safe and clean with no toxic coating’s that most have to make them last longer, they do require more maintenance, when people don’t follow that maintenance you get a warped or cracked board. Also they are not meant to last as long as your plastic one from Walmart, they should be replaced more often. Luckily for a pack of 3, and I’ll say again that are TRULY non toxic, they are super reasonably priced! For what they offer I would even pay more for these. They do also come with instructions on how to care for them! So if you are the type of person to leave things dirty, or wet in the sink, these are probably not for you. For anyone who doesn’t mind taking the extra minute these are a must (literally a quick wipe, rinse and hand dry, it’s nothing). Gives me a breathe of fresh air to know I’m using safe, and clean products.
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Reviewed in the United States on May 4, 2026
L
Verified Purchase
Lacey Killion
Lowell, US
★★★★★ 1
Cutting boards will splinter
A lot of the reviews that are saying these wooden boards splinter are true. I was excited to find some nontoxic wooden cutting boards for such a great price. Upon arrival, they seemed pretty decent quality when I pulled them out of the package. I proceeded to use the large one so I gave it a quick rinse with warm water and was taken back by fumes coming off the cutting board and then wiped it down with a white paper towel and my paper towel was brown. I was a little discouraged, but decided to give it a better rinse with a soap, free brush. At that point once I dried it off whatever coding was on it came off and it was rough and splinters everywhere. Definitely a little upset that the splinters could’ve ended up in our food. These are not good quality non-toxic cutting boards I would rather spend a little extra money on a quality board that is not going to sprinter Wood shavings into my food.
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Reviewed in the United States on May 23, 2026

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