At least the turbo didn't decide to take anything with it on it's death.
Hopefully will be the end of the problems, :-)
I think people try and do an at home service and end up out of their depth. If you know your way around subarus it's not a problem, but for people just used to doing an oil and plug service on their drive can be a bit daunting,
How did yiu clean the coils ? Just take off and clean or is there a more thorough way
Cheers
Mine went for a major service as soon as i bought her, mechanic said the box oils haddn't been done for a long time and whoever changed the plugs gave up in the rears as they were worn down so far it's a wonder it sparked.