variable suspension
 

variable suspension....how hard is it to add to a car that soesn't have it and does it really change that much

If mine didn't have the TEMS, I'd not add it. TOO MUCH $$$ and work. It OK, but there are better setups.

I'd get some REALLY GOOD progressive shocks and Eibach (or better) lowering springs.

You'll get a decent ride around town, and have a good curve handling car for speed, and on the mtn roads.

good handling on mtn roads at high speeds is what im looking for what else should i replace in my suspension along with that

Check the ball joints (see the FAQs section), and tie rod ends. They are probably worn out, and are easy for YOU to change.

Look at the other bushings while you are there, cause you'll already have lots of stuff off while doing the springs.