I posted this in the other how-to section but I figured I would link it for you guys also.
This is a tool you can make to equalize the pressure in your tires, inflate your tires equally, deflate equally, etc. (This could be ideal for drag cars, SCCA, daily driven, etc)
This tool can also be very helpful when doing a boost leak test.
Link below:

https://www.evolutionm.net/forums/ev...ssist-etc.html

 

Neato, I might make one. I know my brother would use it for drag, and I would use it for track. I already have a few of those things laying around, and the other parts are inexpensive. Good DIY!

 

Right on! Very nice thanks for the info man. I'm definitely going to get one of these in the makings.