NGK Cold Plugs?

[InfiniteGSX]

My friend needs to replace his plugs in his Spyder. It was a Non turbo Spyder and now its turbod... And his plugs are about to die. We already had problems with one breaking... And were wondering what the part number to the right NGK Cold Plug would be...

 

[Locke]

NGK 4g64 replacement plugs are BKR5ES-11. Try BKR6E-11 (#2756) or BKR6ES-11 (#5553) @0.028-0.032" for a boosted 4g64.

 

[InfiniteGSX]

Thanks!