I have installed dozen of 7mm spacer shims on Porsche over the last 20 years. Up to 7mm there is no need to replace with longer studs. The huh eccentric thing isnt really needed as the wheels locate on studs and have ball radius bottoms so "pull" the wheel in the correct position as long as you dont tighten one nut all the way up first!

 

wider front track = more grip and we don't take points for these under current pca sdr rules
all the cool kids use them...



Craig

 

If I were tracking, I understand. My question was more slanted for the street.