09-10-2013, 07:23 PM
(18-07-2013, 06:26 PM)Niall Wrote: Just stick to standard NGKs. The gti engine responds best to them and can in fact respond worse to these expensive gimmicky ones!
I put bosch super 4 spark plugs in two different engines (one fiat one bmw) both of which were allergic to them!
They kept unscrewing themselves making the car chuff! :/