Bosch Spark plugs

Hi I've brought some bosch super 4 FR78X plugs for my N15 1.6 Ambition. currently the only mod I have done is adding a K and N 57i air induction kit. Can someone please tell me if the spark plugs above are better or worse than the copper NGK ones for my car. If you can reccomed any other spark plugs then that will also be great.
Thanks for helping
 
i have the bosch ones and they're not too bad.

I think the NGK iridium plugs are the best ones avaliable but dont know much abou them.
 
There's probably only a slight difference between the good brands. Servicing your oil and making sure your filters are changed on time is much more important.
 
yeah stick with the normal NGK's, probably not even worth getting the Iridium ones to be honest.
 
I have NGKs in mine too, but what i meant was that if he's already bought bosch, it's not worth getting another set, as on a 1.4 or 1.6 the difference wont really be noticeable.
 
bosch super 4's are shit, you can't gap them properly. One of the tips also fell off on a set almeragti had fitted in his mildly tuned engine and fucked his bottom end, not the only one that its happened to either.
 
just for refferance NGK's plugs are cheap from Nissan about 3 quid each when I last brought some. engine oil is cheap from Nissan too 12 quid for 5lt.
 
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