Just curious if anyone has actually tried these at the drag strip on a TPI car and what the result was. I am thinking about fabbing something or buying these prior to my next race day, but don't want to waste my time doing so if the difference is negligible.

I have seen a few articles, I think Car Craft did a ram air system on one of their project 5.0 Mustangs where it picked up a mph and a tenth.

Thanks!