900 bucks? did u go from stage 1? if u have a stage 2 is only a pulley upgrade costing $90.00 dollars

 

I believe Stage 1 is just a supercharger without intercooler. Stage 2 adds the intercooler to the mix. Stage 3 is the addition of a higher boost pulley. I have seen them even do a couple of other morphs in the Stillen kit which included putting in a larger 7th injector and remapping the split second box to bring higher torque numbers.

 

$900 to install the entire Stage II kit including the intercooler then I added the pully to up the boost after that(Stage III).