Aftermarket header aren't to hard to install, however, i payed to have mine installed. I would go with shorty headers that is what i did. I read more positive reviews when i googled the product. I buy most of my mods at summitracing.com and the web page as an easy to use search engine for make and model and year, even engine size. Plus they are usually relatively cheeper than everyone else.
94 v6 coupe
bored 15 over, comp cam, after market upper plenum, bbk 400 hp rated fuel pump, cold air induction, egr delete, ford racing 8.8 w/locking 3.73 gears, custom flowmaster cat back true dual exhaust h-pipe, 19lb fuel inj