Just saw the Sept issue at B&N (stop me if this has been posted already but I haven't seen it). They have a story on LG motorsports mods for the LS2 and show some dyno results of up to 500 RWHP w/ heads, cam, intake, CAI, headers and open pipes. Up to 450 RWHP with the above pieces but with cats and exhaust. I ready it quickly so I might be a little off but they showed good improvement on the dyno with LG parts, once again confirming they are quality pieces. Also, they use a Snake Charmer intake so actual HP out on the road might be a little higher...