Diff. between 325hp and 345hp slp package?

Iam looking to purchase a 2002 camaro ss LE, and it has the 325hp package. I know that all 2001-2002 ls1 came with the ls6 manifold and a z06 clutch. What exactly made the difference in hp numbers? Thanks 


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not alot, its sales gimicks.   ls1's are 350hp stock, so you actually have 350hp.   their package has some different intake options, maybe a tune... i cant remember.   its mostly just a numbers game.