Here in UK, many Mx40i owners are seeing 350-380bhp and high 300's lbft at the crank on a dyno pull.
Makes me think that Mx40i has B58 MPPSK tune from the factory - shame they don't so an F2x B58 of the MPPSK exhaust to go with it....
JB4 on a standard M140i - 8ZF running Tesco 99 fuel.
Standard times [map 0 or map 4]
60-100mph - 5.2 seconds
100-200 - 10.6 seconds
JB4 map 2
60-100 - 4.2 seconds
100-200 8.1 - vbox chart below......