Water Injection:

My personally-designed water injection system.  It is actually quite close to Joe's system, which I highly recommend.

Interior LEDs and switches to control the system.  NOTE the purge valve I have under the boost gauge:

It was originally activated by a pressure switch set to 9 psi.  It is now controlled by my Nemesis.  

This is the injector, just downstream of my Greddy intercooler as far from the throttle body as possible.  This is the optimum placement for the injector.  

This is my Frunk (front trunk) where I put the reservoir and the pump and receiver.  That reservoir holds almost exactly a gallon and has a positive sump so I can corner and not lose the water pickup.  

This is a picture of my relay wired to a junction block in the frunk.