[Hammer]

There are probably at least 4 or 5 manufacturers of roots style blowers out there. I'd pick up a copy of MM&FF as well as do some searching on the web...

3 to 4 thousand (American) will be the price range for a decent set-up. Also remember that you're also replacing that crappy stock intake. (My stock intake blew as soon as I put some boost on it...)

I've had the blower about a year and only had an issue with some bad oil seals. Procharger repaired the unit with good seals under warranty and I've had no problems (with the blower) since.

To be honest.... I absolutely LOVE the power.

But like I said, the streetability and reliability of the roots style is just great, and is very worthy of consideration...