ive been using just the puck for a while now with no problems. As well as other settings I got the code after i was merging onto the highway and it revved to 3k. Anyway I think im just going to use the puck for now.

Hi

I downloaded the stack tow tune and the check engine light came on. The down loader said it was "fuel pressure too high" it does not say what code number it was. At the time I had the puck position in the off mode. Has anyone else got this code before and what caused it? The truck is a 05.

whats the difference between the pre r28 and post r28 revision? I have the u7130 model for an 05.

Hi everyone I just recieved the downloader puck combo for my 05. I'm disapointed that the U7130 will not change tire sizes, That was one of the reasons I bought it. Other than not changing tire sizes the added power is nice.
What downloads should I install? Is there a download yet on the fly power ...