Aerofinz
Member
Running no cats especially with a rich tune (supercharger, etc) will almost guarantee a strong odor. I've run several applications (stangs, vettes) with dyno tunes by some of the best tuners and always got a rather strong odor especially at idle. Ever been behind a car at a stop light with an obnoxious odor? Probably catless. Stay behind it long enough and you'll be changing your clothes. One of the very top tuners in the midwest will tell you that going in. He recommends against it.