well i tried to take the headers off today so they could be ceramic coated. I sprayed em down first to loosen some of the corrosion. Most of the nuts came off easy, but a few pulled the entire screw out with them, and one snapped off completely. My question is, they look like they just have screw shafts coming out of the headers, that you then put the ring over, then tighten the nut down. If i were to take the screw shafts off completely, could i replace them with bolts instead? or is there a reason that its a shaft with a nut?? 







