If you really want 300 awhp,you need to have a plan dont just go throwing parts at it. Frist things frist, you have to remember that you have to start out slow such as, cobb, turbo back, bigger tmic. that being said move to slightly larger things, injectors, fuel pump, turbo. just rememeber that if you start with the turbo you then find you self working backwards, when you do anything you will find you need b,c,d, supporting mods just to make a work. belive me i was new and jumped in with both feet........huge mistake