i think the whole idea on the gutting precat mod is that it is basicly free. this is why i did it anyways. but you see the guts fill the whole manifold. there is no extra place to exspand. now on the front manifold there is a part that looks like a umm waterbong. sorry could not think of a better word. you coule cut aht out and replace if you wanted to. but that is a lot more work. do as you will thou. don't let me stop you.
