First of all, which kit is, in your opinion, the best one?

And which one is the cheapest?

Is there someone here who has already supercharged his 540i? How does the car feel after the mod? How long does it take (approx, for a rather good mechanic) to perform the modification?

What is the 4L V8 std comp ratio? Does it stay reliable enough after having been supercharged?
Is the remapped chip well tuned or does the engine feel harsh or non running properly after the conversion?

Has anyone already heard about an engine failure after having performed such a conversion?

Oh, and how fast is the car with the supercharger? Is it kicking E39 M5's ass?

Thx for help mates!

Jon


PS: what is the nikasil thing some of you are mentioning about their V8? I know it's a treatment done on cylinders, but does it mean some of you have rebuilt their engines and done the treatment or does it mean BMW have done it in std on SOME engines? If so, which ones?