So I went looking for the best bolt on the intake manifold to replace with the hollow one for my turbo boost sensor. Someone had suggested the front bolt under the electrical sensor plug but when I pulled it out the hole didn't look hollow to the inside. I pulled one more and still wasn't filled with confidence. Any suggestions?? Byron 2003TDHO

 

I installed mine toward the firewall, the passenger side and it was I beleive the second to the last one. It is working great!