I know there are a lot of engine noise threads in these forums but i cannot find the issue. Stage 2 gti drives perfectly all day, but after some time of driving there comes a decently noisy rattle noise from the engine bay, *not flywheel related*. I am able to turn the car off and turn it back on and the noise is gone again and wont come back until driving for a little while again. It seems inconsistent too, sometimes it will never make the noise and sometimes it will rattle after about a 15 minute drive. Any ideas on what could cause something like this?