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why are these numbers so low chevy promised 400hp when i got my camaro in july mine ls99 was supposed to be 420hp:(
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The manual six speed LS3 is rated 426HP. The auto L99 is rated 400HP. These are flywheel ratings. The dyno #'s you see posted here are rear wheel #'s. You lose roughly 20% of your HP through the drive train. i.e. 400HP at flywheel = roughly 320HP at the wheels.