Me and my friend are putting in the whole exhaust and the boost gauge. I was wondering where exactly we are suppose to splice through. I am sry if there has already been threads like this. I will search right after this thread, but if anyone can help that would be great.

PS-I got an Autometer gauge and I was wondering if the hose that came with it, is sufficient enough?

 

You don't need to splice into anything. Use the nipple on the UIM next to the vaccum line running to the stock BOV. Just take the cap off and attach the boost gauge line.

 

I went through the rubber boot that holds the steering column instead of drilling a hole in the firewall.