I bought a secondhand Eurosport Twinscrew Supercharger, mostly complete, a couple years ago, but wasn't able to get it fitted until this past week. I first installed one of these__brand new__on a 2000 ///M Coupe around the begining of 2006, and I promised to get myself one! In the meantime, I fitted an Active Autowerke twinscrew (technically 2nd hand too, though mustn't have ever been installed, as AA had never furnished the software until I did the installation in 2001) that went onto a 1998 ///M Rdstr. My Eurosport Twinscrew was removed from a '95 ///M3 (OBD1) so there were some parts I needed to source, and some that needed replacement. Oh, and I had to pack up a house and shop (3 fully loaded shipping containers *just* from the shop__we used "pros" for the household items) and move from Ohio to Florida, then set up the shop so I could go back to making a living, before I could afford the luxury of supercharging one of my own cars The whole build album is here: http://www.spcarsplus.com/gallery3/index.php/TS-prep-work If you ever get a chance to drive (or be driven in) a car with a twinscrew installed, seize the opportunity; it doesn't feel like a *boosted* car at all, it's more like it's been fitted with an additional engine! I've fitted centifugal superchargers (Rotrex, Vortech, under various banners) to 2.8 Z3s, S-52 & S-54 ///M Rdstrs & Coupes, an AA STGII turbocharger on a 2000 ///M Coupe and the aforementioned twinscrew installs, and hands down, the TS, in my opinion, provides the greatest driving pleasure.