Just wanted to know if this is possible, have a 06 ss/sc and just got the GM stage II installed by the dealer... and now when I drive and I'm heavy on the throttle I can feel... "bumps" in the amount of power I'm getting to the wheels like the pulley is slipping or something I don't know? Then today I was doing the same in second when it seemed like the car completely lost its nuts for one second and then boom taking off again. any help?

 

did they put the smaller belt?

 

take it back to the dealer and have them check it out

 

Yes take it back to the dealer and let them deal with it, assuming it is related to the install. If you're curious you should check the supercharger snout and pulley for black buildup. That would mean your belt is shearing due to slippage from it being the wrong belt or due to a bad tensioner.

 

Thats what I figured, no dust/debris around the pulley so I'm just gonna take it back to them.