i was thinking of doing a kitty delete and 4 inch turbo back first. I'm mixed on the egr cause i have read in this forum trhat the egr delete actually increases slightly the fuel consumption.
To go with a tune would mean studs for insurance right?
Ive never heard of doing the EGR delete lowering fuel mileage??
If it does anything for power or fuel mileage, it would help it!
If your state doesnt have inspections GET RID OF IT! Because when the system does fail (Which it will) you will be looking at some $$$$.
As far as the tuner goes, you will get mixed reviews here. It all depends on how much self control you have. Some guys are reserved, use the chip for better MPG and slight increase in power, Others feel how MUCH power they now have,think they have a race truck and the pedal stays on the floorboard 90% of the time. With studs thats fine, but with TTYbolts, prepare to blow the gaskets.
I would start with the basics.....
Run a good fuel additive (Cetane booster)
Change both fuel filters, and oil filter
1) EDGE CTS MONITOR or another monitor device
2) EGR delete
3) 4" turbo back exhaust
4) Upgraded fuel pressure spring from ford
5) SCT with custom tunes from one of the tuners of your choice.
Adding a coolant filter wont help your MPG, but it seems to be very important on the 6.0 to keep the cooling system clean of debris.