Show me some dyno sheets cause for the money Catco clearly wins. And how much of a horsepower gain from this extra flow are you gonna feel? For an extra $150per converter, sorry. Unless you are trying to scavage every single hp., then don't waste your hard earn money on advertising. I own two 2-1/2 inch Catcos now and am here to say they are premium quality and the obvious choice over random-tech.
