"Your trusted DCT/8HP conversion shop - By enthusiasts, for enthusiasts"
HOLMEN PERFORMANCE RESOURCES
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.
Discover a World of Options to Transform Your Car
Premium Accessories for DCT and 8HP transmissions
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Nissan RB Products
Pioneered solutions by HPR
Dont pay extra for similar designs copied from us.
We develop and design innovative solutions with the best specs at the best price
"We dont follow, we lead"
Customer voices
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
Product spotlight
GTR SUPERIOR DCT KIT | BUY NOW
The ultimate solution for installing an 8HP transmission into your Skyline GTR
This all-in-one package features an HPR-prepped 8HP transmission, complete with all essential accessories for a seamless installation. At the heart of the kit is HPR’s billet bellhousing and flexplate—the crown jewel of the Superior Kit—delivering unmatched strength, precision fitment, and performance reliability.
At HPR, we've tailored a discounted package that suits 95% of our customers—whether you're looking for a car that's comfortable to drive on the street or one you can push to the limit on the track.
The full package includes
- A prepped CAT 0 1000HP/1000NM transmission which is done in house by our mechanics at HPR.
- HPR 8HP Thermostat oil pan
- Setrab 8HP 625 Oil coler kit
- DCT Shifter (Short/natural)
- HPR S/R chassis shifter plate with wiring grommet
- CANFormance transmission control unit
- CANTCU 8HP plug and play wiring harness
-
CAN Keypad (6 keys 3x2)
Items not included in the kit
-
Rear propshaft customization for R32/R33 users.
This needs to be shortend or new one-piece can be purchased. - Transmission oil
- Upgraded torque converter with a higher stall speed
(stock unit included with the transmission)
Superior 8HP to GTR kit
The crown jewel of the new Superior kit is undoubtedly the billet RB bellhousing, ingeniously merging the 8HP centerplate into a singular unit.
Developed in-house at HPR, utilizing cutting-edge metrology-grade 3D scanners and Geomagic Design X software, the Superior Kit sets a new standard in transmission upgrades. Meticulously curated components ensure a premium feel and an unmatched driving experience for Skyline GTR enthusiasts.
Advantages of the Superior Kit are abundant:
- No chassis modifications required across all Skyline GTR models.
- Eliminates the need for cutting the bellhousing to accommodate starter or front propshaft.
- Matches the built length of the 6-speed Getrag found in the R34 GTR.
- No custom front propshaft necessary (spacer kit supplied for R32/33 users; R34 direct fit).
- Includes a billet steel flexplate for added durability.
- 100% bolt in with stock propshafts for R34GTR
The Superior Kit comes complete with a prepped transmission and all necessary parts for mechanical installation.
With machining and external components like the bellhousing pre-installed, installation is straightforward. Simply bolt on your transfer case and install the transmission as a single unit.
NOTE:
- The Superior Kit necessitates CNC machining and modification of the 8HP converter, housing, and rear planetary gear, all carried out by our skilled technicians at HPR.
- The included transmissions are sourced from BMW vehicles originally equipped with the N57 engine. Rest assured, each transmission undergoes thorough inspection to ensure quality and is backed by a comprehensive 90-day warranty.
- R34 GTR transfercase will not work with this kit
- R32/33 GTR Front propshaft needs to be extended with spacer kit
included in kit price. - Rear propshaft needs to be shortened for R32 and R33 chassis
- Stock propshaft can be used for R34 users
Optional upgrade packages for 8HP transmissions are available for purchase separately.
Please note that propshafts and any other items or accessories not explicitly mentioned in this description are not included in the kit. For a complete and tailored swap solution, use our full package configurator here to build your ideal setup.
"This product is a custom order with our supplier and cannot be refunded."
Please contact us at info@hpr-tuning.com for more info and availability as lead time can be up to 16 weeks.
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