I think apex-i N-1 coilvoers are the best product out, as far as complete coil over products go, close second to ZEAL and TIen.....my only beef with tien is how many different "mico" systems they have...SS, RA, HE, RS, n1, etc....although I suppose it makes customizing the suspension toy uor car/driving a bit more unique....
I know Apex-I makes good ****, veilside uses them, and so does signal auto.....I think that speaks for itself.
one problem: cost like 1800 to 2600 dollars.
as far as "cheap" coilovers go, ground controll does make good stuff, but I've heard you have to do some "minor" modifications to make them fit right...and OBX stuff in general sucks ***. you get what you pay for, and anyone that uses "racing technology" to describe EVERY GODDAMN PRODUCT they make, is absolute ****. there is no "JDM lighting racing technoloy" light bulbs mother****ers, its just a HID "look" beam. god those ads piss me off.-chet(this is just an opinion, btw, Im sure there are many ZEAL, GC< etc people out there..)