Alot of kits you will find are only fiberglass, even the expensive japanese ones, that's just how it is. If you're careful and you aren't slammed to the ground then it won't matter. But a lot of people buy the cheap ones on ebay, and most of the time the fitment will be off, but most kits don't fit perfect, which is why someone from a shop will need to fix it (or yourself). A pro can mak ea *BLEEP*ty kit look nice though.