Once I searched for those real superchargers , minimum price for new was about 2500-3000 $ minimum..
But are they really a good thing long term for any car apart from diesels? :-/ :-/ :-/
If they are so good why are they banned in F1 racing? :-/ :-/
F1 bans engine enhancements to slow cars down for safety (as all the drivers are too gay) and supposedly for more exciting racing, rather than governing the root of the boring racing - aerodynamics!
What?
!!!!!!
I thought the aim of this (now boring) sport was to go as fast as technically possible?

Actually I do remember TB something being said about this many years ago, with my F1 mad sister saying something about it 
It all seems so crazy to me, but F1 seems totally that may to me anyway!

Why are turbo's not fitted to all sporty / high performance cars though? :-/ :-/
The 1.5l turbos in the mid 80s were beating all the 3.5l normally aspirated at the time, so in effect you have 2 classes. So they banned the faster turbos.
Then a while ago, they made max engine size 3.0l as 3.5l were getting too quick.
Then last year, they banned V10 engines, as too fast, everything had to be V8.
The FIA is useless, and think that overtaking in pitstops is exciting. Mind you, they - like the drivers - probably think its too dangerous to overtake on the track.