I've been lurking around the site for a while and reading/watching. I would like to put a pyro and a boost gauge on this truck but do not have a clear idea where to tap into. I have the retarder and it has a fine threaded "bung" that I have pulled out and checked. I'm concerned that it would interfere with the retarder operation. I was told that there is a "J" shaped pipe that I can purchase and it replaces the pipe that goes on after the retarder and down to the muffler? Also, for the boost gauge, I do not have a real clear idea where to start for this add-on. I've been told there is an allen-head plug, towards the back of the intake (on top) that I can use to tap into but would like to confirm this. Any help would be appreciated.
FL60, Cat 3126B (250HP), Spicer 7sp(ESO66-7B),Meritor (Rear) RS-17-145(3.42:1),Meritor (Front) FC-965.