[JL8Jeff]

I was under the impression that the stock LS1 heads are really dam good and capable of 10's or lower without any work. So I don't understand the need to work the heads like that. The headers and y-pipe seem a little overpriced as well. I would start by determining what kind of power you're looking to make and how fast you want to go. Then come up with a plan on what mods will get you there. It might be a lot cheaper than those quotes.