okay i need a set of plugs for a h23 turbo but i am not sure what to get. i have been to several places around here and found the stock one everywhere. i assume i need a step colder. the stock one has a 6 in the middle and a guy at smyth automotive told me that i need one with a 7 instead of a 6 and i am wondering if that is true and if so where could i buy them because i haven't found any.
thank you

 

Take the stock spark plug code and replace the 6 with a 7 and search for it on summitracing.com. there is a couple other good sites too, but summit is where i get them. When they say 2-4 day shipping, its there in 2 days or less.

 

thanks