I have a 03 cummins, and im stuck on what i need to do next to my truck. I have the Edge Jucie with Attitude, S&B cool air intake, 50 horse injectors(dynomite diesel performance), and its straight piped. Im averging 15 mpg and would like to increase that as well as power. any ideads?

 

Honestly sounds like you have everything you need to get pretty good mpg. Mostly now it's just driving style. I try and keep mine around 2k rpm and I avg 18 mpg. Also you can try and airdog or fass fuel system. Seems to help all my buddy's trucks.

 

ditch the belt driven fan for an electric setup.