Doesn't slow it down too much... Mine had battery problems and it was way worse before ~120kph - mg2 stuck in high gear in limp mode (afaik), no torque fill at all and some other things. Once it gets going, you're still getting near 300 constant HP :) Next mod - 3.769 diff from NA/JDM... wondering whether to put a 3.9 from a JDM ls600h or a 4.1 off of an IS350 - having full power only above 130kph or so is a bit pointless :P
@@shrt64 Not sure if this car has absolutely 0 battery but yes from what I've read from the internet the car works normally if the hybrid system is not in operation. Of course the performance is worse as it is just like a GS350 with extra weight and a gearbox that probably isn't the best choice for NA engine without any assist from turbo-/supercharger nor electric motors.