I bought it and it has done me well, got almost 400hp at the crank as read by the OBD2 port using obdeleven. Havn't been able to test it above 6600rpm but like AsumMK6 said it doesnt seem to run out of breath and could probably be pushed further at higher rpms (aiming to upgrade my ea888 gen 1.5 -got a strange mix engine in aus, some parts are gen2 but engine is a gen1- to 8500rpm). This was also achieved with a bit of a leak in my intercooler piping as I did my own custom solution as most pre-mades cost around $1700 AUD; the leak was caused by the aluminum piping conecting the stock silicon to a silicon adapter (2.25" to 2.5") not being bead rolled. Have atached a graph to show the results I got. These profromance figures were achieved with a custom TVS ecu (stage 3) and TCU (Stage 3/4) tune.