I've talked to a lot of people who got screwed by DP..I bought some balls joints from them a long time ago and those things went out after 6 months and of course they wouldn't return my emails etc, absolute nightmare. I have a small shop here in California selling only OEM parts for Porsche or quality (European made only) aftermarket parts and we can beat most prices (not always but 8 out of 10 times). If you're ever looking for great quality parts at a low price give me a shout, I'll try to hook you guys up. And I would really stay away from DP USA.