i just buy 1 set spark plug for my evo7,MS851336 NGK PFR6J-11,but plug cable not very fit,i feel i already wrong to buy,anyone can tell me this set for what engine?
HI all,
I recently got a set of forge piston with compression ratio of 9:1. I am palnning to fix it on my gti, however I am not sure the 9:1 ratio is with or without consideration of the metal gaket?