I recently bought a body kit from vis racing.I have kombat sides and rear and batttle-z front.when i take off the font bumper there is nothing there for the battle-z to bolt into.so i figured i had to use to factory renforcement from the bumper however, it does not fit. the mouth comes in way too for it to fit, and if this is how your supposed to fit it you could easily see to renforcement.Please help?!?!?