Well kinda....
Stage 1 was installed at the dealer last fall and I was charged 1 hour shop time. I installed the stage 2 upgrade today in about 2.5 hrs. About 1.5 hrs to remove the SC and do the pulleys, and reinstall, and about an hour to put the belt on.

I also installed the stage 3 pulley, the boost jumps instantly to 12-13 at just about any rpm, and builds to about 16lbs. Definatly a nice improvement over just the reflash/injectors. Plus it was the hottest day of the year, mid 80's, we'll see how it does later this week when the temps go back to normal, 50-60's

 

What's the stage 3 pulley size?

 

Damn 3.5 hrs!!!!!!!! That's a long time. Sounds like my stage 3 install is going to be fun to put in

 

2.9, That's the smallest GM will go

 

Actually the stage 3 pulley is stamped 76mm, which converts out to 2.992, so really closer to a 3" pulley.

 

Just curious...what is the smallest pulley to put on our cars, to where you do have to machine the snout?

 

2.8, ZZP has them for 70.00