I updated my rear end to an 09, then crinkled my rear tunnel. now i installed the VE rear tunnel and love it. I just re used my heat exchanger and it looks fine, just make sure you flatten your cooler if you don't want it hanging out the back.
Sorry no pics but van amberg on my 08 m8 is great super fit and finish.Cooler not a problem at all . My sled has been on it's tail many times. Great bumper for un stuck. I replaced my tail light with led third brake light off a taho very trick and light.
I agree on the bumper, especially if you run with a snow flap, nice and easy to grab onto. Can you put up picks of your setup, i'd like to see your tail light.
I have this stup on my M7 and don't recommend it. it looks great but doesn't stand up to much abuse. Rolled my sled on a hill and completely folded the whole tail section down about 6". It wasn't what I would consider a bad roll either. Once you kink one of the flat plates on the sides the thing looses all strength.
Can't even carry a full jerry can now without bending it back down again.
It should have a small 90 degree bend on the bottom of the side plates to give it some extra strength.