I remember back in '12 when I installed mine from Z1 there was concern with some of the studs not being manufactured correctly (slight bend in the studs, all u had to do was look at em)
CZP is a reputable shop, not sure where youre getting that they are not
================================= 1991 NA 2+2 - Pearl White - Auto (RIP) 1996 NA - Arctic White - 5Speed (SOLD) 1990 TT - Aztec Red - 5Speed (DD)