I don't know anything specific for our cars but I have put together a bunch of sources for info in our Suspension and Handling Links
Don't fix what isn't broke. IMO too many people have aftermarket-itis and assume anything "new" you can bolt on makes the car better. It doesn't work that way; especially with suspension. You first have to identify the problems or qualities you don't like. Then you have to form a plan that may remedy them. Then you have to implement and test that plan. Obviously this takes some knowledge of what is really going on and how changes will affect different characteristics.
Believe it or not companies who sell parts are in business to make money, not make your car better. Companies are just like people. They all have an opinion but you have to decide for yourself which are valid and which are not. That takes some edjumication