Chipotle Crusted Grilled Pork Tenderloin

1 teaspoon onion powder
1 teaspoon garlic powder
3 tablespoons chipotle chile powder
1 1/2 teaspoon salt
4 tablespoons brown sugar
2 pork tenderloins

-Remove any unwanted fat and the silver skin from the pork
-In a large resealable bag combine all of the ingredients, except the pork
-Once all the seasonings are mixed together, place the tenderloins in the bag and shake, coating the meat evenly
-Let the tenderloins stay in the bag, on the counter, for about 10-15 minutes. As they come to room temperature they will marinade correctly
-Preheat the grill for medium high heat & lightly oil the grate
-Cook for 20 minutes, turning the meat every 5 minutes
-Remove from the grill & let rest for 5-10 minutes before slicing