i just had some double platinum plugs put in my car a while ago and was wondering if they are ok for boost?

 

it depends on hat heat range they are, the colder the better.

 

are those bosch? if they are just throw them away. haha

 

Platinium plugs are poo-poo for performance.Platinium is not a great electrical conductor.The manufactors like them because platinium is harder than copper so their is less gap errosion.Thats how they get their"no tune-up untill 75,000 miles".It takes more voltage to spark a platinium because it has so much resistance.Copper way better conductor but softer.Iridium is the best of both worlds.It is 4x harder than platinium and has a higher melting point but takes less voltage to spark than copper because it has lower resistance.

 

too bad denso iridium is like $12 bux a pop. Just get some colder NGK for like 2 bux each.

 

Iridium plugs are expensive but they will last 2-3x longer than copper.