Ya like the above said; it really depends on where and what riding you are doing. I found a banshee with a aftermarket filter, and pipes was enough power for the moment. So i went with spending all my money ( thousands) on suspension. I ride mostly trails, as well as some mx on the side. But if your doing mostly dune riding, fuck suspension and do a 4 mill with a port job.
Start with the timig plate, you cant get a better mod for as cheap as you spend