Leave the motor computer stock and just put in a Pittsburgh Power unit. I've run one for 2 years on my 15.8L 3406E 600 hp. They can program the unit to cut back to stock fuel rate after the egt's hit a set point. Your choice, prolly need a turbo also to flow well and up the mpg's. They can supply that or send you to someone who can.
The Pittsburgh Power N-14E Cummins and 3406E Cat Electronic Upgrade Kit
Last edited by Lowboy : 07-25-2007 at 05:46 PM.