It's a very lazy design from Nissan, regardless. It makes a huge difference. I have done a back to back test with Marko_R1's car. 3.0 and -10's. Without it, it chided like a steam train. With it, 90% of the shuffle went away. GT-RS's suck dick either way, but that is a first hand experience.There are NO downsides to doing this mod.