in the pics there is a wheel spacer fitted,

I have just bought a gt kit and they have spacers too, as long as they are decent hubcentric ones there should be no issue at all, can make the wheel sit a bit better in the arch aesthetically too if that makes sense.

these kits are very good for looks but if you havent got big turbo setup then not really needed as the standard brrakes with better pads and fluid is as good as you need and you can spend the money on other mods

vrs si enters alot of comps and wins most so his brakes are for the show more than anything and they look the muts nuts on his car......

You don't need to fit spacers for this kit...my standard 17's clear the calipers.

I'm running a 3mm spacer though just for some additional clearance