Hey 98, I must agree with Blazing Saddles in that you should not worry until you reach the 400hp mark. I also must agree with UnderDogGT with his assessment of the suspension. I chose the BMR HD subs and they are a very high quality product, however I noticed that after they were installed I really didn't notice any difference in handling or ride quality. This is due to the chassis that ford has chose, not that the sub don't work (they probably do help with launch). If you are shooting for that 400+hp mark, do the subs now. If not, put the money into a different mod.