my 03 plate wrx has had a boost gauge fitted before i bought it, it has had the t piece put into the vacum pipe coming off the dump valve is there somewhere else i can put this as it just looks abit untidy

 

Is there not a blanked off nipple on top of the inlet manifold?

If there is, it'll be on the front n/s, covered with a length of plastic sleeve.

Just pull it off and push the tubing for the boost gauge onto it, no need for a T.

Alcazar