Re: Jeep wont stop!
Just about any header can give good results with some prep work. Buy the headers with the thickest flanges you can afford. Use a straight edge to check flatness of flanges before you install them, on cheap headers it can save some headaches to find out they are warped or damaged BEFORE you try and install them. Use a 120-180 grit disc on a side grinder to clean up the sealing surfaces. Check to make sure all welds are complete and sealed. Use quality gaskets and splurge for some dead-soft aluminum ones if you can find them. Tighten completely,starting in the center, after all bolts are snug. This works well for me.
It really sucks to bump your headers five minutes into the trail and damage them or ruin a gasket and have to listen to that "ticking" exhaust leak all day so make sure you have plenty of clearance all around the header to compensate for engine movement and that the collectors and exhaust tubing aren't hanging down too low.
I'd get the hedmans over the pacesetter.