it was as soon as i left my mechanic... i noticed the car had gotten louder and stalled at the lights... i went straight back and thought that the idle needed to be adjusted, had that done and left... it was a really rainy day so i did not drive on boost on the way home. the next day was nice and dry, i gave it some some and the car ran like a dog... got the timing adjusted, back on the dyno for an safc retune and the car has run great ever since... idle was set to 740rpm and my RSM shows that it only ever goes + or - 10rpm! car is smooth on idle and it sounds quiet again...