Looking for what I need to order for 03 GMC 2500 HD sierra

[CORKNUTZ69]

Wanting to get the diablo programmer, currently getting 11 MPG and I hear that this thing will get the mileage upwards of 18-19??? Anyhow, if so does anyone have a PN for the programmer as well as the usb/power supply stuff needed to update the software on programmer etc. Also, is this easy to use as to I'm not a technician but I am computer savvy.

[06MonteSS]

uhhh, no... not sure where you heard that, but it won't get you THAT much mileage... 1-3mpg maybe... but not 7 or 8 haha...

you would need a U7193 model predator and the pc interface kit...

marylandspeed.com has the best pricing on them right now, check 'em out...

[mikel]

some poor running diesels may see bigger gains, I have some duramax guys who claim +5 MPG improvements

[CORKNUTZ69]

Thanks even a 3 MPG would pay for itself in first year. I'll give it a go..........so once you program it with this thing you take it off and store it in your house etc.? Or do you have to constantly be using this. IE. If I have a friend that has one/or a shop that has one they could flash it for me or do I need to buy one no matter what?

[CORKNUTZ69]

Also dumb question but on this link http://marylandspeed.com/advanced_searc ... ords=U7193
It shows like cadillac, corvette, pontiac but no GMS 03 sierras........assuming that if its a U7193, no matter what it says in the description it will work or does it have to be ordered specifically for 03 gms sierra?

[06MonteSS]

Thanks even a 3 MPG would pay for itself in first year. I'll give it a go..........so once you program it with this thing you take it off and store it in your house etc.? Or do you have to constantly be using this. IE. If I have a friend that has one/or a shop that has one they could flash it for me or do I need to buy one no matter what?

nope, you have to buy one.. because once you tune your truck with it, it is locked/tied to your vehicle...

and no, you don't have to keep it connected/hooked up to the truck the whole time.. after you flash a tune to it, you can unplug it and store it wherever you like...

[06MonteSS]

Also dumb question but on this link http://marylandspeed.com/advanced_searc ... ords=U7193
It shows like cadillac, corvette, pontiac but no GMS 03 sierras........assuming that if its a U7193, no matter what it says in the description it will work or does it have to be ordered specifically for 03 gms sierra?

that is the correct one... they don't deal with trucks, so they don't list the trucks it works on...

[CORKNUTZ69]

thx