i didn't think when i got them aha just bought a set or replacement ones, but now i've been looking at the iridium ones and they look worth the money
gonna have another expensive month this month anyway, just bought a set of apex shocks for my 35m apex springs to sit on, an omp strut brace, goodridge stainless braided brakeline kit, and waiting on someone to buy some abarth sideskirts and getting a new upgraded clutch fitted
ive got some NGK Iridiums in my 1.6, ive not noticed any difference, but i would rather pay the little extra for better quality spark plugs...unless your running higher power then iridiums will do the job best