Dont waste your time and your money man. I was really close to trade in my 07 4dr sedan I bought in may. I looked up the cheapest sti but in the best condition and I found it. I went to look at it and it was perfect... till I looked inside the interior. There was nothing wrong with it, but I felt like shhh* Im like what am I doing. This car is nothing to compared to my civic. Its basically fast thats it, THATS IT! Whats even worse the guy wanted to give me $15,000 when I paid about 21,000 not so long ago. Hes gotta be kiddin me. Hes giving me this and that he can buy a new si for 18,000. I just got out of there cuz I was wasting my time. Anyways im telling you whatever it is that you want as an upgrade, do it on your own car and the trade wont make it any better. Im wondering if there are people trading their civics for the Mugen.