I think scratches and scrapes are unavoidable with a lowered teg and body kit or any car for the matter. Well atleast for me they are. I'm lowered 2 in but yet I am still able to pull into my driveway which has the biggest gutter ramp or whatever you call it I have ever seen. Very sharp angles are the solution, but yea those bumps that come out of no where definetly suck. I plan on buying a new front bumper (since mine is scraped and scratched so bad) in the spring and repainting my whole body kit so I can get rid of the scratches hopefully.