So I have an 05 Tahoe LS. 128k miles looks good, runs good. I have installed a K&N filter charger and 3" catback with a Magnaflow muffler. It has a bunch of cosmetic stuff all murdered out with 22" wheels and complete Bell Tech suspension lowering kit, sway bars, Nittro shocks. I don't really want to do much more but I would like to make it a little faster. if it ever blows up I'll drop a 6.0 in it . So my question is what tune ? I just drive normal I always run premium gas. I just want it simple when I read about Black Bear everyone is Happy but people say it takes awhile and whatever I do I want it fast, simple and something I don't have to mess with and still passes smog, any ideas ? Thanks !