Well it is up to you if you want to replace all the coils but the front ones are expensive for labour if you are not doing it yourself. The rear coils are much easier to do yourself. Used coils are fairly cheap in salvage yards because I don't think there is a big demand for these parts.Yes, I purchased the sport struts and shocks since I have the rav 4 sport. Do I just bit the bullet and replace all the coils? Do I replace just the coils or do I need to replace any other parts along with the coils in your opinion?
Also have you replaced all your struts, shocks and coils and did it make a difference for you.
As for my suspension they are still all original.