Howdy all! I plan to buy a header, but want to keep my Super Ultra Low Emissions Vehicle rating, which (as far as I know) means Wagner or Essential Speed. However the Wagner "mild steel" costs $185 while the ES costs > $500! From their websites and from what I've read here the Wagner should help about 7 hp/10 ft/lb, and the ES 8 hp/20 ft/lb(!). This to me doesn't seem enough to justify the huge difference in price. Does anyone know if the Wagner isn't built well (fits poorly, cracks after heavy use, ....) or is a pain in the ass to install? To me I'd rather save $350 and lose 1 hp/10 ft/lb, but the huge price difference makes me nervous it's simply cheap and will just crack after a year. Any input?? Thanks!