Can someone tell me what plugs to use. My RA apparently has HKS iridium plugs but I've read somewhere that these are not generally rated. Car has full de-cat, filter and high spec rebuild so want to run some nice plugs. Which do I need ?

 

NGKPFR7B 0.7mm gap

 

Take it these are better than the hks items ?

 

dont know whether they are better or not, but they are well recommended by people in the know. HTH