Just wondering if this is a direct plug in and away you go or done it need to be tuned?

I want to buy myself something for xmas and thought this would be good. Only mods i have are high flow cat and muffler. I want to get headers but if i don'y have to i wont. I would rather the ECU. I dont want to do any other mods to my car as i have been told the inlet side to the DC5R is really well put together.

I dont want to go k-pro as i plan on doing nothing else. Will this particular ECU be any good?

Sorry if this already exists.