I have my truck in good running order right now so I am looking at some upgrade/modifications. I tow with it and would like a Pyrometer to monitor the temps befor I modify anything. Do you guys run probes on each manifold? Where did you mount your probe and what style did you use? I haven't even looked yet but do 6.2 stock manifolds have a 1/4 NPT or would it need to be added if I went that route? Last but not least most of the suppliers list pre turbo or aft turbo, wich do we want for a NA 6.2? I am guessing the pre turbo but figured I would ask. TIA for your thoughts and experiences.