By forcing in colder, denser air than your regular intake, a scoop helps your Sierra's engine fine more efficient power. A 2010 GMC Sierra scoop is an easy and efficient way of forcing more air to enter into your Sierra's engine system. More air provides better cooling for better, more explosive combustion. Or, if you constantly find yourself hesitating before crossing a tough trail, install a snorkel to your intake. Snorkels for 2010 GMC Sierra trucks raise up the air intake so that there is no chance that water, mud, or dust from the road will enter into your GMC's engine while driving in rough conditions.