First, do they make them for my 90 S2? Second, are they as good as Bosch claims? Third, if none will fit my car, should I go with NGKs? What kind? I guess in general I'm asking what plugs I should get (and from where) for best performance.

 

First they dont make +4's for a S2, I have one also, second i wouldnt put them in even if they did, go with ngk's they are a far better plug than bosch........larry