what would be better for an 89 honda civic.
im thinking about a full body kit or a complete SiR front end.
what do u guys think?

youre question is vague at best... is this car a daily driver? what climate will you be driving in? etc, etc....

My opinion, keep it honda, it will last longer, fit better and most likely be cheaper than a body kit. Esp if you drive in bad weather, fiberglass kits crack, break, dont fit right etc...