I just got my Autometer pyro/boost gauges! C2 series with cool blue light :ro) Got them on the A-pillar and ran pyro/boost tube threw fire wall. Now my question is on the boost gauge when going out of the MAP sensor the kit gives u, From that sensor with the 1/8 inch plastic tube, does that run to a vacum hose with a Tee, Or out the MAP sensor straight to the boost tube where u have to tap a hole in the intercooler tube?

I see alot of pic's showing the drill and tap, but not where the tube goes after the drill/tap. The instructions don't say to drill/tap it, it says to use a vacuum tee. or is drilling just a better method? By the way its a LLY.

05 2500HD LT D/A.....Stock!!

here is where I tapped mine in the air horn and here is a similar link

http://www.dieselplace.com/forum/showthread.php?t=23402

http://www.caldwellonline.net/pix/LLY%20boost-1.JPG