What happens when you plug guitar into amp and play it? Well, you'll hear something. And what happens if you put amp's overdrive on max? Guitar will ROOOOCK!!! ..... Ahem... ..... What happens when you start KSP and play it? Well, it shows you some UI. And what happens when you install Overdrive mod? KSP UI WILL ROOOCK!!! How to: Simply merge archive contents with GameData. Depends on UICore. Legal: Source