the apexi is 4-1
i have no full set
i mean after the 4-1, the 1 i dont have
please refer the below photo
the problem is my friend want to try this one
so this had reserved to my friend
and i need to swap with the original one either my friend want it or you want it
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?