brake light flashes and beeps????? and a clunk

Noticed it a few times, everything seems to grab correctly (as in little wheel spin) now it seems to do it every time I take off hard, the Brake light flashes a few times and I get 2-3 beeps, same beep as low fuel. then it goes away till I launch hard again? any ideas? ALSO I noticed a clunk if i accelerate the let off gas hard the hit gas again "clunk"I would describe the sound like a bad u joint in a chevy truck? it seems to do it every time you:: on throttle ... off throttle,,, on throttle "clunk" Is that normal I never noticed it beforeI thought it might be play in Quattro portion, I did jack it up and the drive shaft doesnt seem to have play, I was playing around in a parking lot when I heard it, I was listining to the new Forge Splitter building pressure the letting it off . DAMN NEW BLOW OFF VALVE ...HA HA