I have a 2012 3.73 AED tuned 5.0 with brembo brakes, cat / resonator delete , magnapacks, Prokit, BMR lca relocation brackets / panhard and a sound tube delete. I also picked up a set of 17x4 15x10 darkstars (thanks terry!) and now I am ready to put some meat on the wheels. Any suggestions on tire size? I hate the fact that i have to shift into 5th gear with my factory wheels. Would I need to run tubes with the slicks?