Yea i was kinda thinkin in order to have any chance of hittin 12's i would have to have some kind of boost thats y i thought the LS4 would have a better chance than a L36 at crackin the high 12's on a all motor car but your right not really alot of performance parts available for LS4''s i wonder y Gm would put them in 3 or 4 of their cars an not make that much performance parts for them. The LS1's an LS3's have alot of aftermarket parts but not the ls4's??