This bumper sits a bit lower than stock. If ride height is kept the same than the difference is not too significant. I would estimate that it hangs less than 2 inches lower than stock. It does however have a lower diffuser that goes back to the front axles for aerodynamics. Most individuals who use this bumper slam there cars on the ground so from the pics that are out there it would be easy to get the idea that this thing hangs six inches lower than stock.
I hope that this answers your question!