so i found a local guy who was selling the audi sport front sway bar, i have the stock sport suspention front sway bar in my car currently. what is the difference? i've measured them both with a micrometer and both are 29mm. i ran the part number with audi in danvers ma and they do not show that part number, i also tried google and i got alot of german sites, only problem... english is my only language. can someone help me out?