Hey everyone. I am looking at getting my Eco cruze tuned. It has 63,000 miles on it and has a manual trans. It is bone stock. Is there any other good mods I have to do before tuning it? Or is tuning it the best place to start? What tuner is the best? Bully Dog, Vtuner, Trifecta? I am leaning towards Trifecta. If I go with Trifecta how does it work? Do I have to send in my ECM or do I get a flash tuner? Thanks!