Now you guys got me all siked up. I was gonna just go with an upgraded ct-26 but now i am liking the sp61gt from sound performance. I went to their website and saw more than that turbo tho. I saw a sp58gt and sp59gt. Do all these bolt up to the stock 7mgte exhaust manifold? The sp61gt does bolt up with mods too right? I am building a pretty strong motor right now and want 450 hp at the crank. Which turbo do you think would be the best? Also, 3 inch turbo elbow beneficial or just not worth the money? After the elbow I will have 3 inch all the way back.