As for the turbo, it's 48 trim, 64 A/R. I went with the .64 A/R for quicker spool. Although I would have preferred the 56 trim, as it does flow more (btw, I learned how to read a compressor map after looking up all these turbos, what trim does and how A/R effects a turbo), I couldn't pass the price up on this turbo, as it is used. Now, for the story of buying a used turbo,
I AM COMPLETELY AGAINST BUYING USED TURBOS. I thought that the only way I would ever buy a used turbo is from a friend (I barely have car friends though). This turbo was rebuilt and
he provided receipts of the rebuild from ATP and pictures. There wasn't a better opportunity for me to buy a used turbo than this, so I jumped on it, brushing aside the negative of the trim. Shaft play is excellent and a brand-new feel, blades look nice and all bolt holes are intact. My goal for this car is a touge beast, and I think this turbo will cover it.