I run a couple tanks full of Seafoam and soaked the plugs with Seafoam and they came right out. I took them out, clean off what little carbon was on them, put some Anti-seize on the threads and put them back in until I can afford the one-piece plugs. No Problems. I found that using a longer breaker bar makes the job alot easier. You can use force smoother and easier.
Steeda CAI W/93 SCT Tune, Steeda CMDP, Steeda UDP, Steeda LCA, Steeda UCA, Steeda Sport Springs, Steeda Panhard Bar & Brace, Steeda Hood Strut Mounts, Steeda adjustable Camber Plates, Tokico D-Specs, G2 Painted Calipers,Sequentail Tail Lights, Magnaflow Free-Flo Cats W/Exhaust, Homelink Self Dimming Rear Veiw Mirror W/ Garage Door Opener, Compass & Temp, Eclipse AVN 5510 Head Unit W/ Nav, Chrome BBK Plenum Cover and various Dress-up Items.