Check their ads in classifieds. It's been fine so far (100 miles). Eliminated a vibration I used to have, and did not start any new ones. Contrary to what I've heard a few times, in-cabin noise didn't seem to get any louder at all. A one-piece DS is supposed to recover a few percent of the power that's lost between the engine and the wheels. Mine was $300 shipped for an auto 2+0 TT. Prices vary depending on what car you have. Actually all other models are less than an auto TT, they range from something like $240-300 shipped.
Kez
"Pulled the blower fan down from behind the glovebox and there was a mouse nest inside the cage fan - mom and 6 babies. Mom was dead and the reason for the smell - petrifying fast - but the babies were hanging on. At least until I fed them to the cats." [ZXtaZTT - June 19, 2002]