Exactly, a ZZP stg 3 is $230 vs. $180 and is 10% smaller core. Im pretty sure even WBS is just modifiying frozenboost cores for wbodys now too. The core in their pics looks identical to my frozen boost but with a few extra tabs welded on.
1999 GTP Coupe ------ Comp Cam 76-802-9, 2.7" pulley, S2IC, N*, FWI, SD Headers, DHP Tune, Built trans (single 3.29s, 300m), Magnaflow Catback, 60#injectors, E85, MT ET Street DR's, Fbody brakes, PRJ pump/rails. 302whp/328ft-lbs.......12.41@110mph