Time to change my plugs they are well past due and worn. Some recommend the BKR5EIX while others recommend the 6. Some auto sites have the 5 as compatible with my car while 6 not.. though I thought 6 was standard?

I'm also thinking 0.8mm is probably what I need. But I could get the 1.1mm and get high voltage coil pairs? Think my setup is wasted spark type.

2005 Outback with EJ252 in Australia