BMW M44/RX8 adapter This adapter plate was designed to bolt a BMW M44 engine to an rx8 gearbox using as many of the engines standard parts as possible. It utilizes the engines original flywheel/ starter motor and clutch pressure plate. Along with the correct diameter ford/mazda rx8 23 spline clutch friction plate. In most cases it is possible to use the rx8 clutch arm slave cylinder and release bearing with very little work, but In some cases the clutch arm pivot point height might need ajusting to suit. Tested on road and in motorsport to ensure we offer the most reliable adapter plate on the market. Adapter plates are normally in stock and are sent out next working day via a 48hour courier. If the item is out of stock there my be delays but we try our best to inform the customer as soon as we can if that is the case.