Well the good news is, even with very moderate MPG gains, a tune from spartan will pay for itself even faster

 

Just recieved my XCAL-3 from matt yesterday, waiting for him to call so he can send me my tunes, Can't wait!!!

 

It is honestly the best upgrade that I have done by far.

 

when you get matt's econo tune do you get HP gains out of it as well? and what is the difference between all his tunes? i don't understand the XCAL-3 stuff. is there a 1 and 2? LOL

 

Yes you get an HP gain on all of his tunes, even the stock plus. The XCAL-3 is just the newest SCT tuner. The SCT is the tool you use to load the tune into your truck.

 

well i just bought my first 6.0L psd last night and took it for a 2 hour road trip to check out the economy on the highway. i was amazed at what i was getting. it was reading 16.4 on the info center on the insturment cluster! this really blew me away since when i bought it it said 10.5. but that is probably just because it had been idling a lot from sitting on the lot and going on short test drives. anywho i couldn't be happier! as soon as i blow through this first tank of fuel, which should be today, and get a hand calculation i'll give an update.

 

Welcome to the 6.0 board, and good luck with your "new" truck! You already have the PSD grin, LOL!

 

Grats on the new truck. They are fun to drive indeed.