I wasn't doubting your advice, I also come up with the same result of rb25e before posting this thread, I just wanted opinions without my bias added. I used the wrong terminology when I said daughter board before, I thought that was the cradle thing where the chip sits which definitely has installed. RB20det ecu's are priced like they are gold plated because as you probably know you can't chip the r33 rb25det ecu's and have to use either rb20det or z32 ecu so demand and price has gone up. These ecu's go for about 250 second hand on eBay out of Japan, 25 years old plus and could be stuffed and then you have fit nistune on top of that which starts to get into the power fc price point. That is I why I bought this ecu, I thought I was getting a bargin but poor man pays twice I guess.