How do you identify a genuie RS500 t4 turbo

 

Look for a .63A/R exhaust housing and .70 front compressor housing.
Iirc the exhaust housing is the older Garrett version with the exhaust outlet flange on a seperate 5 stud piece with the Wastegate penny fitted, not the more modern version with the Wastegate incoperated within the actual housing itself.

 

Thanks i will have a look at mine when i get home but dont remember seeing a washer