Have you watched the videos, please be more specific.

ok bought the car with dsmlink v3 running stock injectors 14b and tuned very well and runs great but I have a MHI 16G and 560cc I want to install but not sure how to change the tune without screwing up the tune or much worse.

In link you go to the setting that allows you to specify the injector size (fuel tab). Change the Injector Size to 560cc and hit apply. Then flash the data to the ECU.

I think the reason you are not getting any responses is because anyone that has ever played with DSMLink knows where the injector settings are at. I assume (and everyone else probably does too) that you have never even went into your DSMlink to look at it. Some more info would be nice. Did you get the software on your computer and the datalink cable to connect Link? Have you ever connected it to your car and done a datalog?

I don't mean to be a dick but the questions you are asking I knew the answers to before I even had DSMLink because I watched the tutorials on the website.

Try starting here and let us know if you have any questions after that ecmlink101 [ECMTuning - wiki]

Do constant research, That's what I've done so far. Still don't know much about timing yet.

Dude, as pointed out by Tsmith ecmtuning has a great wiki page. Furthermore they have an array of extremely simple/easy to follow video tutorials that cover configuration and startup tunes with larger injectors, to a base cruise tune.

I suggest using the search features on the site (or just use google) a little more before starting a new thread.

Contact my1gdsm he will set you up on a great remote tune at a great price.

yup got it went to the ecmlink site and watched some videos I went and got some logs im going to post to see what u guys think about my fuel trims and airflow any advice will be great.

best thing to do is grab a beer go sit in your car and fiddle around for awhile. youd be surprised how much more familiar with the program you are every time you walk away.

i also log everywhere I go.