BMW N5X/S55 to BMW 8HP Adapter

Unlock the potential of your N52, N54, N55, or S55 powered BMW with our 8HP transmission adapter kit.
 
These adapters are custom made for Seems Legit Garage by ADAMAT, allowing you to bolt up the B58-based ZF 8HP50, 8HP51, and 8HP76 transmissions found in F-series BMWs and the Toyota Supra. These transmissions offer extremely fast shifting, excellent strength, and far better availability than the older diesel 8HP70 or weak 8HP45 options commonly used in other N-series swap kits.
 
Most existing 8HP swap solutions for N54/N55/S55 engines rely on diesel 8HP70 transmissions, which are difficult to source in the USA and have less-than-ideal fitment due to their case angle. The B58 8HP platform has quickly become a game-changer for N54 racing and high-power street builds, and it has performed incredibly well in our own single-turbo 135i time attack car.
 
This adapter allows the modern B58 8HP transmission to fit right at home behind your N-series BMW engine.
 
Compatible engines:
N52, N54, N55, and S55
 
Compatible transmissions:
B58-based BMW and Toyota Supra ZF 8HP50, 8HP51, and 8HP76 transmissions
 
Installation Guide: [HERE]