Probably because for $200 you can pick up 20-25 hp over a stock manifold with a pulley drop and tuning, and 10-15 over a plog with the same mods. Also mine never leaked just a few v-bands and a smearing of copper RTV, and the downpipe included took all of an hour and $30 for a new flex to make perfect, the trans dipstick took 10 minutes to pull out, slot the tab and remount in a better position.
You want an equal length, longtube set of headers? go get a RWD car with the engine pointed the right way and stop whining on here, or go make your own.
