So I intend on getting one off ebay soon. I searched and saw the modifcations you have to do to get the gaskets and ports to match up. Is this needed on every single product they sell? I suppose I know how to bolt up everything, but do not know how to do this? Can I use my stock throttle body (for now) and heads and still see a increase in performace? Also will I be able to use my stock injectors? I dont want to have to spend hours on modifying this thing, but I also do not want to spend 200 extra for a brand name intake either. Someone give me some help and input on maybe how and what I need to do, maybe a step by step and tools needed or if I even have to doit at all. Thanks.