When I converted to true duals I had high flow cats replace the back two. I was warned about doing the front 2 because the 302 needs a certian amount of back pressure. My question is, with either the Torque Monster or FMR headers, is it better to run on stock catalytic converters? Dont think it makes a differance, but the 5.0 is Superchip Perfomance tuned and a cold air intake is in the near future. Also, although im sure theres a forum for this, would some of the members here take a look at my modifications and tell me what you think. Im not an Elite member...yet. goto: http://www.cardomain.com/ride/2074363