Reading this will help you understand why proper plugs are a must and also why this piece is so expensive

http://www.ashill.org/saab/di_works.htm

 

Wow! I never would have thought that thing did so much.

That's one of those reads I'm going to have to let sink in a day or two before I ever get it all straigtened out in my mind.

Definitely an interesting read though.

 

It's quite a clever device I must say. You really start appreciating it when you start modifying a car with one...

 

What plugs are better for saab? ,i've heard NGK is recommended i put in bosh platinum which are not bad as well.

 

OEM plugs are the way to go. Proper NGKs work best with these things.