[GretchenGotGrowl]

I was originally a little skeptical of the integrated exhaust manifolds, but now I think it is six of one/half dozen of another. It lowers weight and reduces manufacturing cost. You will probably never make the LFX sound as aggressive as an LLT with tuned headers, but you can get as much gain with a down pipe and high-flow cats on the LFX as headers and high-flow cats on a LLT. Given you start out with 11 hp more, that seems to be a plus if your goal is more power. If your goal is the most aggressive sounding V6 then yeah, it is a negative.