anyone know where to get a instalation kit for auto meter boost gage?

 

for my fourth gauge, I got a mounting thing from genos for like $6 that goes in place of the airbag on/off switch.

 

What do you mean "installation kit"?? You have just the gauge alone, with no tubing or fittings?

Just go to your local Napa and get 5-6ft of 1/8" black nylon air tubing, and two brass 1/8" pipe to 1/8 tube" compression fittings (one male, one female).