NIsaacs said:Your exhaust brake should allready have a 1/4 npt opening in it. Just pull the plug out and screw the probe in. You can weld an adapter on the pipe but that will be getting too far from the turbo with the length of your exhaust brake. I like to be around 2" from the turbo to get a good post turbo reading.
"NICK"
klenger said:Download the parts manual from http://www.jakebrake.com/service/pdf2/32416 Rev E.pdf
The picture on page 2 shows the EGT probe fitting on the bottom of the elbow.