Getting lighter wheels helped my ride become noticeably more compliant. Everything is stock except the wheels, which are 5+ lb lighter per corner, with otherwise stock specs, and the oem summer Potenzas mounted on them. It makes sense when you think about it, there are 5+ less lb banging up and down everytime the tire hits something. I've always thought that saving unsprung and rotational weight is one of the best things you can do for a car, but didn't expect this aspect of it to be that noticeable.