I don't track or autox my car, so take this with a grain of salt.. but installing those exact mm spacers gave a very minimal, if none, change in how I perceived handling characteristics of my 86.
What I can say, however, is that the spacers really tie the look together, along with lowering springs.
I'm lowered on sportlines, 20f/25r mm spacers, and SPC camber bolts up front.
