definatly get coated headers or stainless steel, lasts a lot longer. i personally only do stainless but had a couple issues on the curtis ceramic header on my yfz450. too much heat too many times caused the header to be weak and i blew a hole about 3x1 in it

 

people he already has shorty headers, yes LTs are better but he is not going to yield much in rwhp to make this change for the money. You are looking at kooks plus a new mid pipe for well over a grand, piece together a supercharger.