Well, this isn't exactly a true "boost gauge", but it's a pressure switch used on automation equipment that happens to have a nice digital pressure (and vacuum) readout. Found it at work.
It's a small cube-shaped housing. I had an aluminum "U" shaped bracket made to hold it in place against a piece of tinted lexan that is used for the faceplate. The faceplate fits snugly into place where in 2 of the 3 vacant switchs. It's not very dark tinted, which is why you can see behind it with the help of the camera flash. This pic isn't very flattering, it looks better in person. I really wish it were a red LED display, but can't complain for the price. It's easily readable day or night.

 

thats looks sweet, creative

 

here take out the lexas and paint the back black. it will keep you from being able to see behind it. this is what i did with my switches. ill post a pic asap.

 

99a4audi, thanks. D_K, exellent idea! Will do that this weekend.

 

Is it a backlit display? If so you should get a black peice of plastic to stick over the top to make it flush with the rest of the console.

-T

 

getout the bondo and make youself a small front panel for that sucker. Then it would look friggin cool.

 

I may make a new faceplate out of aluminum, either polished or brushed finish. Might look better.

 

not unless the rest of your dash is aluminum