Recent content by Phillips4288

Thanks for help guys I got parts ordered and waiting to be delivered

hi tanks in advance for help and ideas. I am gonna build a exhaust system for my fj40 and I have never done one before. The headers I have on the 5.3 liter vortec are 2.5 inch flanges. Should I go dual exhaust or 2 into 1? If I go 2 into 1 should I upsize pipe ? If so how large should I go...