im confuse if the stock GTS gets 160 whp then y do they say GTS has 180 hp wat is the differents im comfuse
WHP = Wheel Horse Power, HP to the wheel, or.. "Real life HP"
The HP you see in spec sheet from manufacturer are obtained from the crank. So all the parasite effect of the wheels,transmission,flywheel,clutch, pulleys (all things that get movement from the crank) are not calculated.
That's why when you installed a lightweight flywheel or pulley you "free up" some HP instead of "adding" HP, but at the end it give the same impact =)