My wrx has been doing this for a year and im f***ing sick of it as im always getting up starting it cold in the early hours and it does it.
It doesnt do it at idle, but when i accelerate it starts quite loud, it dies off at about 2800 revs and when its walm it also stops??
The clostest vid i have found is this
but i still dont think its dead on.ive been told it may be the lifters?
Please help!!