Who said anything about noise correlating with performance?
Regarding the noise, I thought it might have had to do with the lack of the resonance chamber being present in the application. But hell, it is only loud in the high RPMs, where I am rarely at, and the neighborhood kids love it when I kick it in
I do not, however, believe it has saved me any fuel. But then again, I constantly drive it likes it is stolen. I suppose GM conducted their MPG tests with no extra weight and at an exact, average speed limit...
Regarding the comment on the lack of studies proving it, where are the valid and reliable studies proving that the kits do not work and do indeed damage engines?
Like I said above, one vehicle with ten filters changed in and out is not a valid nor reliable scientific study by any means.... Further, wasn't that on a diesal engine?
