I wanted a manual transmission more than all wheel drive and better engine, so ordered the Clubman S rather than JCW, thinking that the money saved could be used to upgrade areas that were perhaps a bit lacking. Other than the horrid run flat tires the first thing that bugged me was it seemed to lag off the mark. Although my goal isn't to go faster but rathr to handle the best possible on challenging twisty roads, it seemed clear that there would be an overlap between handling and horsepower! After replacing the tires, this Eventuri was my next project. There was a couple months delay between order and receipt so I was thrilled when it arrived. It is simply fabulous. I have no complaints. Well I wish they would have included instructions in the box, but there are wonderful detailed instructions with photographic illustrations available to download from Eventuri. Those instructions are top notch. I also watched YouTube Videos and while there are a few differences where you nee...