is there a recommended time or milage to change the plugs? are there any recomendations over stock plugs? i am not running forced induction. thanks

 

Everyone will have their opinion as to which plug is best. The stock plugs are supposed to be good for 100K but I dont like pushing them that far. In that time, a plug has been subjected to 50 million+ explosions.

I changed mine at 60K to the NGK Iridium IX and the car runs perfect. The 60K plugs were still in good working order, but they did need a change.