I feel kind of stupid asking these questions. but The dirrections that came with my gages are at best real sketcky and I don't want to screw up my truck. I just bought an ISSPRO EGT gage and the instructions lead me to believe that if the exhaust manifold is not drilled and tapped for the thermocouple, It should be installed in the exhaust pipe within 6" of the manifold end. I however would like to install it in the manifold before the turbo. Can I do this and if so where do I drill and tap for the thermocouple? Next question is how do I hook up the boost gage, to what?? I am OK with the electrical part of both gages, hot lead to the dash dimmer switch and the other to ground. Appreciate any help with this as this is my first dodge diesel and I hope to do the DR. Performance thing later this spring, after the gages and baseline is established. My rig is a 2001 DEE/ETH (high output and six speed) 4X4, 3500 and presently is stock except for some minor dress up stuff. I am a machinist by trade so drillind and tapping is not a problem, just where.