getting pistons next

[geisi13]

ok so heres what i have so far for my d16

z6 head with stage1 port and polish, stage2 crower cam, crower valve springs and retainers, skunk2 valves, aem cam gear, obx plugs, obx plug wire (10.3)

t3 turbokit with fmic and hks bov

zex dry nitrous kit

none of this is in my car yet its just sitting here till i get the rest of the stuff i want, i want to get my pistons and rods next, what should i look for in particular, i know i want some low compression turbo pistons, but what brand should i get and what bore, shouldi stay stock or get my block bored and sleeved, im look for massive amounts of hp and torqu here, im eventually gonna be going with alot bigger turbo.