Well most people make the same mistake. Should lower first before changing rims! Unless you decide to go for adjustable coil over.

For the size I mentioned, there was a negligible difference in total size of the tire, so fender gap wouldn't have been improved. If I were to change to a size where the gap would be smaller, then dont need to be lowered. Thanks for your input! If I decide to change to 17", I'll see how it looks first then decide on lowering

Oh no. My SA told me they have markings on the bolts and nuts, so they'll know if I've taken it out before. Guess lowering is not an option anymore :/ just the rim change then HAIH