URGENT Help needed please!
 

I have a 93 wrx import and I am in need of some measurement as to the spark plugs :wonder:

I presume that they should all be the same size, but that may not be the case :( If so, please can someone tell me the thread length, thread pitch and the thread diameter?
All help is greatly apprecialted :thumb:

Thank you in advance.

Glen

Any help would be great :thumb:








Please!