Hi there, posting on behalf of my girlfriend, as I'm the one tasked with fixing things in the household. It started not long after she bought the car, its a 0.7 turbo. I serviced when she got it with fresh oil and filter, new plugs, and new air filter and all was well. One day it felt a bit sluggish, like it wasn't boosting properly. I traced this down to it running lean as there was a split in the intercooler to dump valve pipe. I have a code reader, and it showed a misfire across all cylinders. I replaced the intercooler to throttle body pipe and the power returned, so much so its shown up how poor the clutch was as it promptly started to slip in 5th. The codes keep on coming back though and its getting on my wick! The car seems to drive fine, I.e no noticeable misfire, the only thing I can't really check is how hard it pulls as the clutch is on its way out. The only thing I can think of is a dud coil pack but I'm not sure as when I scan the codes its across every cylinder. Any suggestions guys? Been reading the site for a while, seems very helpful. I love driving her car, the turbo woosh is very addictive and round town you can't beat a kei car. I have another question also that's performance related - From what I can see the air intake looks massively restrictive. Does a mushroom filter stick straight into the hole that the original intake uses or do I need certain attatchments?