Performance Spark plugs...

[Ponyboy]

Any use? Do they make a difference in performance or are they just a gimmick? Increases in HP? Baloney, surely...

Looking at these:

http://www.dcperformance.co.uk/cheap/29 ... -d4ys.html

[SevenR]

I've just bought plugs. NGK listed a Platinum upgrade on their website, but I decided to just go with the standard plugs. Best place I could find them was on Amazon!! £58 odd for the 8 delivered which I thought was fantastic.

[Ponyboy]

I've just bought plugs. NGK listed a Platinum upgrade on their website, but I decided to just go with the standard plugs. Best place I could find them was on Amazon!! £58 odd for the 8 delivered which I thought was fantastic.

Silver are supposedly excellent plugs as they are highly conductive etc where as iridium last longer but don't conduct as well...would love to know what the relative performance is versus standard plugs...