the NGK BKR7E's should work fine, that's what i'm using currently with my direct port kit. i get mine from Summit Racing since they are close and normally have good prices. if i remember correctly the part for Summit is #1283. i've never used the Zex plugs and don't plan on it. the NGK coppers are fine in one or two steps colder with N2O.
i'm sure you may find the 7E's at a local part store if you look around.
i'm curious, how did you fry your plugs after you injected only 5 times?? is it untuned or are the Zex plugs really really bad??
later
i'm sure you may find the 7E's at a local part store if you look around.
i'm curious, how did you fry your plugs after you injected only 5 times?? is it untuned or are the Zex plugs really really bad??
later