I have just bought an 06 ss/sc, not complety stock, and i havegood reason to believe that it may have a stage 2, wouldnt that be anmazing... im running a 77.9m pully, and hitting about 14psi boost, can anyone help me locate some detailed before and after specs on my motor and supercharger? I need a deffinate way to identify

 

I had this same problem when I bought my 05 so lets see if I can help you out. 77.9 is a stage 2 pulley size. If it's a real gm stage kit it should have some very ugly blue bolts holding it on (modular style). They look like a twisted phillips screw head on them. Next you'll notice you have black injectors (stock are green). I forget the part # on them but if you search or someone chimes in you can verify. You should be able to sit in neutral and rev your car to 7grand before rev limiter (stock tune is 6500). If you have all these things then it's safe to at least say you have a stage 2. Anything else look funny? If you want to dig deeper pull off the drivers side wheel and remove some of the little 7mm bolts holding on the front of the inner fenderwell. Pull it back and see if you have a cone filter or something on the end of it. Might get lucky HTH

EDIT: GM also rates the stage 2 kit as 245 horsepower. Although it's been seen to be somewhat higher (engine horsepower, not wheel).

 

put your vin number in here and it will tell you what the latest electronic controller calibration information for your vehicle is . If you see the stage 2 part numbers , than it has been registered with gm as stage 2

http://tis2web.service.gm.com/tis2web

Here are the numbers to look for

Calibration History for: Engine
Part Number CVN Bulletin # Description
12614060 00008A2E - Diagnostic enhancement for DTC P071 and P0507.
12607605 0000DAAE - Engine


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Calibration History for: Engine diagnostic
Part Number CVN Bulletin # Description
12616351 0000A169 - New calibration with diagnostic enhancements for DTC P0449.
12614065 0000CFFA - Diagnostic enhancement for DTC P071 and P0507. Replaces 12603038 (CVN 0000A564), 12605264 (CVN 0000E593), 12610926 (CVN 00007612).

 

WOW thank alot for ur info, man i luv my new machine more than life, im checkout my injectors now, if those match, then the dealership let go of something they were aware of