IAG PTFE Flex Fuel System Kit w/ Lines, FPR & Red Fuel Rails - 2008-2021 STI

Lines and Rails

First off, the build quality if the lines and rails is awesome and they look great on the car. I had a few issues with install, some my fault some not. For starters the lines that go to the stock return/feed lines took a lot of pressure (abnormal) to lock in despite using a lot of lubricant. Also if you’re installing it with the flex fuel sensor its a jumble of lines on the drivers side. If you're planning on using a bigger inlet than stock it will take up some space in that corner between the tgv housing and p/s pump. Otherwise, I love this kit and the piece of mind knowing that my fuel system will support my mods.