So on audi is better manual gearbox and then upgrade inside (shafts copulers etcc) or change it from another bigger engine (e.g. from 4.2 + adapters)? Good to know xDThe auto transmission used in the 2.7 TDI is a multichronic gearbox which is pretty weak compared to a traditional torque convertor box used in the BMW. Even with a manual box the 2.7 is FWD so not the best for 300 bhp plus.