This isn’t true, the lsd has no effect on highway driving, if you are feeling minor tugging something is wrong, or lkas is causing the feeling which it does slightly. The lsd in the si is a torsen gear lsd vs a clutch style and will act as an open differential with one tire on ice. I encourage you and everyone to watch a video on YouTube for how the Torsen lsd works to get a better understanding. I’ve never experienced this “issue” in anyway or on any car with an lsd, si and type r included.If the road is uneven the tires will pull is what seems random directions. Since both tires have power if the road isnt flat it will pull the steering wheel slightly to settle itself. Lkas will mitigate 99% of this. Driving my dads 2.0 vs my so i really really notice it getting back into my car.