sorry for late reply, but ditto... :ermm:
i did this upgrade last year on my 1999 Elantra
i bought the same pulleys from OBX crank + OBX power pulley kit (on eBay) but the power steering pulley WON'T FIT. my installer showed me that the power steering bolt has star grooves in it, while the OBX power steering pulley is smooth. everything else will fit fine, but with a slightly smaller belt, not sure which.
its a good deal though, but now my stock power steering pulley hisses a bit cuz it runs (wears out

aranoid

faster than it should, not like the other pulleys, which are lighter. i just spray a bit a WD-40 or silicone penetrant and it goes away, usually.
oh yeah, the pickup is real good, combined with my CAI i have some nice low-end torque. feels like a midsize engine with the faster revs.