Can you modify a 2008 honda accord v6 3.5 motor bacause it has a vcm system. Like adding a turbo.

 

First question you should ask, is there tuning option for your PCM? Hondata, Ktuner, Haltech. So on and so forth. That will help you better answer your question about adding forced induction. Hint, VCM doesn't limit adding forced induction.