Wow, I get more confused every time I read posts like these last few. I still have my 3rd Cat Delete and Valve Controller in their packaging boxes awaiting installation, which I actually was planning to do soon. I understand that exhaust sound, like everything else, depends on opinions and preferences, but I recall so many favorable arguments for adding the two, that I was compelled to get both. Sure, I can always remove one, even both, or, in the case of the valve controller, just always leave it in OEM mode, but still, having made the investment, those alternatives don't leave me with the fuzziest of feelings. At this point, the hell with it, I'm installing both anyway.