anytime you make drastic changes to ride height, you want to consider an alignment. even if you car still tracks straight, the toe in/out changes drastically and can affect your mileage and handling characteristics.
also, for those in colder climates or anywhere subject to more moisture and salt. you want to check and clean the threads periodically to prevent seizing. many new coilovers have a teflon coating to prevent this, but i still do this out of habit, and to make sure no settings have changed.
if you're not looking for a jarring hard ride, look into the RS*R coilovers. it's their sports-i line which is mid-way between a street and weekend track coilover. very OE quality. they service them in the US. i've had them for a year now and love them.
near stock damping (soft) to rock hard for the track if you wish, 36-way. independent ride height adjustability within the range you specified. softer spring than most competitors so it's not as harsh for a street setup. but for full track setup i'd opt for stiffer springs or go tein monoflex which is about the same amount of money.
they also have lowering springs.
link here for both
the one downside, if there's any. the front shock has a short stroke. if you have particularly bad roads, you can bottom out on the bumpstops if you run a softer damper setting than RS-R recommends (re-uses stock bumpstops so they're nice and cushy if you hit them). you'll only notice if you hit a massive pothole or hit large speed bumps. not sure if other coilovers run a similar setup.