I got the ARKs because I have ARK GT-F springs, and the handling is great. I had the springs on first for a few months, then the rear bar, and a week later I put on the front. The rear was a little noticeable around town but nothing major. the front bar transformed the handling and the attitude of the steering. Much more responsive. However, the impact harshness increase is also considerable with the front bar, even on soft (it is a 27mm front and 20mm rear.) I suspect the poly sway bar bushings. I've ordered some rubber replacements, will try that and report back.