Hai. I have steel wheels on my old RR; 15x7 on front and 15x8 on the back. If I switched to aluminum, I think I could get 8-9 lbs lighter each corner.

If you have ever switched to lighter wheels, without making any other changes such as tire size or gears, did you notice any difference on the butt dyno?

I don't do any racing; just drive around on the street, but if lighter wheels would make it quicker and stop better, I would try them. Thanks.