You are better off running the most aggressive tune that you can safely. I use aggressive for a lack of better word.
Your tune should match the mods you have installed. You are more likely to blow up by running a stage 1 map with stage 2 mods and vice versa.
Also, you should either install a catted downpipe and run stage 2, install your stock downpipe and run a stage 1 map or (best option for any route) get a professional tune.
Remember, a good tune is the most important mod you can do on any vehicle.