Hello everyone. My name is Scott. I decided to look into the forum to get some expert advice from all of you. I have a 2002 2500HD Silverado LS with a 6.0 gas motor. 165K miles. Looking to find out what would be the best Performance programer for my truck. Or is it even worth getting one. I average 10-15 MPG depending. Only thing that is not stock is the K&N filter that replaced the stock filter.