Exhaust hitting body

[GFX2043mtu]

I was more focused on clearance then heat with mine. I put 1/2” clearance around the pipes and 1/4” clearance on the top flange bolt. Then I checked the body with a inferred thermometer and every thing looked fine. I actually expect the body to get hotter in the direct summer sun. Worst case you can put some heat reflective aluminum on the inside of the body around the pipe exit to help with heat. But it may make it worse if most of the heat comes from the sun as it will trap it on the back side.