Ok I have some extra money so I'm planning on upgrading the Turbo on my Greddy Kit for the Ls. My goals are pretty simple. I want to run about 12 psi maybe 14. I use my Ls as my daily driver so I'm not looking to over do it that much. I've already built my bottom end with wiesco pistons and eagle rods so I'm set to reach my goal. What turbo would suite my kit best without overhauling everything. Also, would I be able to keep my current manifold or would I need to switch it along with what wastegate? Thanks.