Hi...i'm new to this club. I met dcloo just now to replace my o2 sensor. he mentioned about you guys and the club. So, i think i'll join for this tt tomorrow nite.
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?