Squeal tires, probably not. Spin on wet pavement or sand/gravel, yes. I'd try an ALDA adjustment if you haven't yet done so. Read my last post (4 posts earlier, dated 9-10-2003) for more details. Wouldn't hurt to check if you car is getting 0-60 near factory spec, probably around 15-16 seconds for a 116? I assume you've got clean filters and properly adjusted valves...