Cutout dimensions
I recently ordered a McCord power plate and a "y" cutout piping section. I wanted to wait for the power plate to get here but it has taken over 2 weeks for the plate to ship since the date of purchase and I can't frankly wait any longer to put the pipe section on. I found the dimensions of the cutout in the X + Y directions, but could someone tell me approx how thick one of these are? I am installing it under the rear passenger seat and I want to know how much room to leave so I wont have to take the thing off again when if it doesn't fit.

