This was removed from a 2000 BMW 540i with Dinan stage 2 software on the engine, cold air intake and upgraded software for the automatic transmission.
This listing is for the transmission control module from that vehicle.
It moves the shift points higher and a little firmer than stock in both normal and sport mode.
Not really noticeable at light throttle but becomes noticeable when heavy on the throttle.
Ultimately, the auto transmission was removed and a 6 speed manual installed. The car was re-wired and reprogramed to manual.
This will work with any BMW that uses the M62TU engine with the ZF 5 speed transmission from the 1999 to 2003 years.