Hello all i have a 2005 its got 1800 miles on my truck. im planing on doing some towing and im wondering about the tts program. has any one used it on the 2005. Also how does all this work with switching ecm's when going in for service also i see that they ask you for your millage also.

TTS gets very good reviews from the owners. Many keep their stock PCM to put back in when they go for service. It can get kind of expensive though. You might compare it to other options, e.g. Predator, E/J w/attitude, BullyDog, etc. Each has their plus's and minus's. Loads of intel on this site on them though. JJ :)

You should wait until you are out of site of the service manager before putting a tune on.

I don't know about 2005's. I do know that I have not heard of a complaint yet.

It takes 5min to swap PCM's. It does not require tools, but the first time you do it, it will take longer. You are best off having someone who has done one before help you the first time. You pop the cover (it's on the driver's side front, about 1 foot down) then push a tab and flip the lever on 3 connectors. Then you wiggle them out. Reverse procedure. Once you've done it the first time, you can do it pretty easy.