Factor

Hey everyone, I'm in the market for a new daily driver and I test drove my first GTO today. It was a 2006 6speed with 16k miles 100% stock. The car was nice but it felt like it was missing something... My question is what is the aftermarket like for the LS2's? If I were to pick up one I would definitely have to make some changes on it. I am coming from a vert new edge Cobra and I can almost build a car from scratch with aftermarket parts... My hopes with my next car are that I would be in the high 11's without losing any drivability. I currently run a 12.7 at 111 mph and I have basically maxed out my cobra (I’m not looking to spray or boost my daily driver). My question is how hard is it to get a GTO in the 11's in a N/A set up?

Here are some pics of my Cobra when I first bought it, almost in stock condition.