I've got a 9a engined golf mk2, What spark plug should I get, a standard 9a has like 135bhp, mine will have about 160bhp maybe more after its been mapped, so should I get spark plugs from a more powerful engine, say the abf? or just get normal mk2 gti 16v plugs. Getting them inj a sec so could do with a rapid response please!
It has a kr head on it.