I've had multiple set ups on my 02 wrx. Tdo4 full bolt ons and E85, 16g full bolt ons E85, 68hta built motor full bolt ons E85, dom3 xtr built motor full bolt ons e85. All with brake upgrades, built tranny, coilovers, sway bars, etc.
My fave setup so far? Evo X stage 2. By far, hands down, the best set up I've ever had.