I know ot turbo cars that new IC piping can have enormous effects on boost and HP output. I'm wondering if any gain can be had if I made new IC pipes and kept the stock IC(but adding a fan to it). I am also planning on doing a CAI with a large cone filter. I'm a welder, so making these things would be more of a fun project than a chore, so be honest with me. If the stock ones are fine then I'll just leave them. Is there anything that a good welder can do that WILL make a noticable improvement? An FMIC is alittle out of my price range right now. I am planning on doing exhaust, so I know thats one thing I can do. Can I leave the factory manifolds or should I not bother until I can afford headers? I saw a thread about the MAC '99-'02 mustang headers that will work with light mods to them. Anyway, let me know guys! Thanks!!!