2006 DTS perf
2006 DTS Performance Lux III
Glad it got resolved for youI had a concerningly loud "pop" upon acceleration and occasionally when braking hard almost the whole time I had my car, my subframe bolts weren't loose, but upon lowering one side of the subframe to do the timing chains when I put everything back it hasn't done it one time since... I loosened all and removed some of the bolts. I dunno, maybe worth a shot I had changed almost everything in the front before this also, struts, mounts, LCA's, links, bushings, ties etc etc. I was just gonna live with it but sometimes things work out....