So im sure this topic has been flogged a million times, iv been doing a bit of research on getting better preformance out of a 2.5 wrx and iv decided i want to keep the TD04 since most subaru enthusiast say the 2.5 cant handle a significant turbo upgrade like a TD05 20g, so i thought about doing as many supporting mods possible to maximize the TD04 abilities. I know its how deep are your pockets sort of thing when making a fast car, atm im just talking bolt ons that a 2.5 can handle?

Just as a side note i am planing on buying a sti in a few yrs but for now do what i can with a EJ255

Do bigger headers, Intercoolers etc do anything for a TD04?