DYNO TEST

[sablowme]

hey guys took my truck to the dyno shop and did some runs the truck has the dynatech supermaxx headers, a hypertech , intake and a corsa sport system to polish the rest of the exaust off...all said and done the 5.3 auto put 273.4hp to the pavement i was pretty impressed myself but im courious what a factory truck puts to the pave ment...any ideas?