Ok about a year ago I put DT Longtubes on my truck and kept the stock headers and catz. I was wondering if I should sell the stock headers or not. I dont plan on putting them back on. I was just keeping them in case of a major engine problem, I got a Lifetime Powertrain warranty and the LT's would more than likely void warranty on some items. So if you were me would you sell the stock headers? Why or why not? What about the catz? What do you think I could get for the headers and the front catz?