Just wondering if one could manage to install long tube headers, in a morning, in around 3 hours? I have my new headers right beside me, and i work from 1:00pm till 9:30 pm, so it would h ave to happen in the morning before work, then leave my truck at the muffler shop to have them finish my exhaust. Do you think it could happen in a morning? All i would do, is cut my old exhaust off far enough back, and then unbolt my old manifolds, then bolt my new headers up, not doing anything with my exhaust. driving open headers to the muffler shop.