Re: ATR turbo ?'s
I think most of the ATR turbos were the Buick Turbo's with 3 to 4 bolt adapters. ie TE-44's, TE-60's, TE-62's, & TE-45's I didn't have a SyTy when ATR was active in selling SyTy turbo's (or even parts), so I am going what I have seen other have upgraded.