K20Ahatch67

I'm thinking of buying a turbo kit for my 03' Si, i've look at the revhard kit and the greddy. And now I couldn't really decide which one to get. According to the revhard website they said that their turbo kit are carb pending right now. Please give me some suggestion. Thank you. Sorry if there's been a post like this before, I tried searching for the topic but couldn't find one. Please help me thank you.