Thinking of putting on 7mm front, 14mm or 15mm for the rear to bring my 20" Ultraleggeras more flush with the fenders but has read once on the forums that spacers had an adverse effect in terms of handling even when they are Hub-centric and Porsche Original.

Those who has greater than 5mm spacers, what are your thoughts?

 

I have had spacers on my car for 3 1/2 years. Mostly street use, but some track use, and IMO it handles the same.