I have used the one across from pence and the one at spring run rd and hull st. They both were the same as far as attitude. I always purchased my parts from the one on midlo though because they store Porsche parts and deal with more porsches in general. Even if the price is high I would go to the Audi dealer. You still work at pence right? No body there will help you do it after work or something. It's not that hard.