Yes, but I'm not a "modder" by nature. The only reason I'm considering the LS6 upgrade is because essentially my engine is a detuned LS6 minus the heads and cam. The rest is purely aesthetic. I'm no quarter-mile addict and I don't street race. But knowing I'm only about 1500 bucks or so from an LS6 is far too appealing to me. If I didn' already have an LS6 intaked, injectors, and a Z06 clutch I wouldn't even be thinking about doing anything to the engine other than a lid (which I have, just have never put it on, long story).