2008 GMC Sierra

[tk77]

What kind of Performance gains can I expect from the trinity from my 5.3

[mikel]

about 15-20 rwhp on premium fuel, with nice gains down low and through the whole power band, plus better shifting. Should also see an extra 1-2 MPG depending on your driving style.

[tk77]

Hey Mike I spoke to you a couple of weeks ago about my trinity, it came up with a internal update (1) and would not reboot. I returned it to where I bought it and they gave me a new one. I called tech suport just to be safe and to make sure i wasn't doing something wrong but the same message came up. I was on the phone with Fank Lopez and later I called back and spoke to you. I got a shipper number from Frank and was told it would be overnighted to your rma Dept. . It was shipped ground and I have sent emails to the rma dept trying to find the status of my trinity. It has been 3 weeks since i purchased the unit and yet to see what it can do. I have few friends that are considering buying the trinity but they want to see it on my vehichle first

[mikel]

whats the rma#?

[tk77]

I did not get one I only have the UPS tracking number