If I want a 1" wheel gap reduction, is it as simple as lowering the car by 1" with springs?
It usually is, but your wheel setup is pretty aggressive. So with that 1" drop, you can expect a bit more of a drop as natural camber will set in and get you a bit lower. However, with that being said, when I was on springs, my rear was lower than my front due to the camber, so that's another thing to watch out for.
Because I insist on this car being a daily and if I have height adjustable coil overs I know I will end up slamming the bitch.
So yes I wouldn't mind getting koni yellows and say king springs but I'm trying to keep it simple at this stage as I'm currently putting the pot towards more performance mods; Apexi avcr/eboost2, battery relocation kit so I can extend my intake pipe length, rrc manifold and bigger throttle body to name a few.