ELECTRO HARMONIX SOUL FOOD GERMANIUM GRAVY MOD
The EHX Soul Food is a pretty nice sounding pedal. After the GERMANIUM GRAVY mod this becomes so close to the Klon that almost no one can hear the difference.
I add a three way toggle switch to go between the 1n60 silicon diodes inside, open and then to NOS Germanium Diodes that are to the specs of those found in the Klon Centaur. The sound is much smoother and warmer when engaged. The great thing about this mod is that it retains the standard clipping option your soul food already comes with. Just flip the toggle and you end up getting the best of both worlds. I also add a bass knob to your pedal.