Same here on changing plugs, i have only put 10k on the car and i decided to change plugs. Wires fell apart when pulling the off, electrodes were burnt completely off the tip of plugs. Oh and did i mention the car has 145 and are original plugs and wires???BLUH
Few questions, are 605s also a colder plug or are they more standard. i bought these last month but havent checked my KR since. Are 105's better.