It's common knowledge that lowering your tire pressure can increase the footprint of your 4x4 and in turn improve traction. But what is the easiest way to air down your tires? If you said .44 Magnum or switchblade, then you are right...but not exactly what we're looking for here. Rather, here are some of the market's best options for helping your muddies sit a little flatter on the bottom and grab at the terrain a bit better. Pick the best for your ride and then release some pressure.