Tip: Manifold pressure tee
 

I have dual P-mags up front and a GRT EIS with the MAP sensor in the cabin. I had been looking for elegant ideas for how to tee off of the -4 hose that comes off of the engine to go to the P-mags. I think I have found the solution. A bulkhead fitting tee with small barbed fittings threaded into two legs. The McMaster part numbers for the threaded barbed fittings are 5463K127 and 2844K13. These pictures are taken during construction, so no critiquing all the temporary stuff.

Pictures tell the story. The full description here.