Aka... a GT2835R turbo ... and they come in a .87 A/R housing

just to ninja your post heheheh. Either way the A/R is there to help you fine tune the turbo. If you want a faster spool-up and good midrange then go with a lower A/R such as a .61 or .73. If you want a better flowing housing with top end power and a bit more lag then get the larger 1.01 or 1.12. Dauntless made a wise choice in sticking with the moderate A/R which will be the better street turbo.