Hello. I recently intalled some JBA headers on my Titan, however I fear that I may have made a terrible mistake. Now finding out that these headers are known for blowing out the stock catalytic converters, I had to have the cats removed and replaced with straight piping. I still have the stock cats that have flanges welded to both ends (including flanges on the headers and exhaust), and I can get them reinstalled whenever I need to get my smog checked since I live in CA. However, I am curious to know how much the stock manifold would cost to buy if I ever intend on selling the vehicle since I do not want to just bolt on the cats and let the buyer drive away with a ticking time bomb. If any of you have information or any suggestions, your help will be greatly appreciated. Thank you.