i ran the codes on my sr20det avenir w11... the codes are 53j 3l . wich i guess is a 10.1 non turbo motor... i dont know can anyone talk to me help me out ive been searching for awhile and i cant find out **** really . how do i find out if this is a fake? i have checked down the spark plug hole and you can see i slight groov in the piston, wittch alot of people say that means its not 10:1.. but a avenir w11 is susposto say 53j v8-2l