if you have good road where you live then i would go with a good sert of coilovers but if you live in a area like mine, speed humps everywhere, dropped man hole cover and drainage grills go with a springs and shocks. to get a good setup is never going to be cheap. I have had tien coilovers when i first got my car, and it was terrible. the ride was shocking and if i hit a bump whilst cornering it sent the car all over the place. I decided to go with koni adjustable shocks and apexi springs (35mm) with tien adjustable top mounts. This on softer side but then I spent the rest of the money on anti lift kit and polybushing the whole suspension the ride is very good with enough cornering ability to keep up with most things on the road. the most important component that will help make this all work is a good set of tyres. nankang ns2r (medium) get my vote