Meh! Single electrode spark plugs are cheap. I Like the freedom to run smaller than recommended gaps-takes the load off coil packs-which aren't cheap.
?? Might as well just run the ECU mapping from a totally different car!
Reducing the plug gap will reduce the voltage at which it fires, giving incomplete combustion, poor fuel consumption, increased emissions and making the engine work harder which puts a strain on everything.
By paying MORE for spark plugs, I used Bosch Quads on my Vauxhall Ecotecs, changed at the recommended 40,000 miles and got 100,000 miles without any sign of stress on the coil pack
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