Man I'd love to have one of those on my car!

 

I put one on my ctsv about a month ago, I am very impressed and not sure why more people don't go the roots style route. My baseline dyno numbers were 324 rwhp after the maggie and full exhaust @ 7psi it made 477rwhp, (bear in mind this is the tune right from magnusson, there is lots left on the table)that was with the 2.8 pulley that came with the kit, with the 2.6 pulley, about 9#, although you have to do some slight modifications to the snout of the blower to make it fit, nothing major, then with a crank pulley about 12#, I will be honest though some say with the small blower pulley you get some slippage at 6400rpm, A guy wtih same set up as me is running both pulley's and no reports of slippage, Although he is having trouble sustaining 12#, it seems to flash up to 12 then drop off to a little above ten, he feels it the boost bypass vavle is blowing off boost levels over 10.5 an easy fix though, I have not heard if he has done it yet.Best of all this car drives like a bone stock car, its manners will astound you my grandpa could drive it! IMO its clearly the nicest setup for a car you drive daily.

 

dam, thats nice
it looks like it came that way from GM
perfect craftsmanship by Ed