What's the largest diameter gauge that can be put into one of the spots on either sides of the gauge pod? I have a westach egt and I'd really like to mount it back on the sled but it's a triple readout gauge and bigger than say a 2 1/8 water temp gauge. I'm also looking to put water temp gauges on both my SRXs but it's the size of the egt that has me thinking I'm going to have to get creative with a mounting point.