I didn't realize that the splitter was rare or anything special. I recently took it off the car as it was a little damaged but i still have it though. After having the car for a couple of weeks, a friend who has a Starlet gt, showed me how to by-pass the high and low boost switch so that i can boost higher in 1st and 2nd gear. The car was running fine with no problems at all, but i've recently put a full exhaust system on and decat pipe and now i keep getting fuel cut... Does anyone know why this is happening?