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Explore our extensive selection of components for automatic transmission conversions. We're proud pioneers in this field, backed by extensive research and development, and we've engineered a proven solution that sets the industry standard for excellence. We provide fully customized 8HP and DCT packages, delivering power up to 1800HP/Nm, along with chassis kits tailored for a variety of JDM vehicles.
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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:
- 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.
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The Proof of Our Quality
HPR's responsiveness and dedication to provide their customers with the products and service we require was nothing short of spectacular. It is very obvious when delaing with Helge/HPR that they care very much about their costumers and are extremley passionate about what they do.
- Mitch, USA
"I stumbled upon HPR Tuning online, and that marked the beginning of a remarkable journey. My interaction with Helge, a wonderful member of the HPR team, was truly insightful. Their products are not only exceptional but also backed by an invaluable depth of knowledge. They managed the seemingly impossible task of fitting a BMW gearbox into an R32GTR flawlessly, a feat that was considered implausible. HPR's engineering prowess is truly outstanding." - Gary from the United Kingdom"
- Gary, United Kingdom
"Outstanding communication, top-notch service, excellent products, and lightning-fast shipping. Keep up the fantastic work, folks!"
- Gabriele from Italy
"I'm delighted with our communication. While there was an initial hiccup with my oil adapter not matching my transmission, the HPR team quickly found a straightforward solution. They offered reasonable options, and I'm extremely satisfied with the resolution. I've now put 2,000km on my swap using the HPR oil cooler adapter and PCD cover plate, and I'm looking forward to future business with them.
-George, Hill Preformance Bimmers




























