Pulled and replaced plugs tonight. That last (drivers side rear) plug is a mother ****er. Haven't had such fun since my '69 Super Bee w/383 Magnum headers!!!!
Would you take a look at the image and tell me how my engine is performing? Looks OK to me, but I'm no expert!
Also, were these the original plugs?
I replaced them with NGK Iridium IX, was that a good upgrade?
http://www.subaru-svx.net/photos/files/wynndi/18189.JPG