I just installed my VRSF down Pipes in a they are great. They sound awesome and the turbos whistle at around 1500rpm and above. The install on my 535i was not that difficult...granted that you have some decent tools, and I had access to a lift. Start to finish it took me 4 1/2 hours with a buddy that showed up half way through. I followed chadillac2000's build on N54Tech and used the passenger wheel removal technique. If you are planning to tackle this job, it really is not that difficult especially if you have access to a lift, but even if not, guys do all the time. So... do it..
So.... they are no longer for sale
