Reply to "Headers...which one to choose?"

Your OEM headers cracked because they are 4 tubes welded to a pressed-steel stamping. The stamping expands more than the tubes & their welds can withstand, so the rarest thing in the future will be an un-cracked set of stock headers! All other headers are made entirely of tubing and do not crack. Hall & PI headers are both quite good; be sure their flanges will accept your stock mufflers, unless you mean to replace the entire exhaust system. There is little to choose between the two as far as performance is concerned, unless you also replace the mufflers. In exhausts generally, as noise gets louder, performance goes up, so you may want to consider the sound, too.