How can i tell what stage my cobalt ss/sc is?

I recently bought a cobalt ss, and i was told that it was a stage 3, it has a secrete weapon-r intake, downpipe/header, exhaust system, and a few more mods, but what i'm doubting that it is a stage 3, the intercooler doesn't say zzp on it, and i have a 3.0 pulley, and i'm told that the stage 3 has a 7.6, so now i'm even doubting if i have any stage at all, my car can keep going over 7k rpm, and i have 5 bolts on my pulley which people say means its a stage two, so i just don't know? Can any of you guys help? Because i got beat by a 2014 stock honda But i also do need a tune and new spark plugs and a new clutch so maybe thats why my performance isn't what it's supposed to, but anyways please someone

Give up. How many whippings doe it take for you to finally learn?