I recently purchased a Scangauge after reading about it on Mud and that thing is just awesome! Well, anyway after viewing the intake temps and reading a few threads on Mud, I wondered it would be possible to lower the intake temps by insulating the air filter canister and piping. This was largely motived by a thread by Landtank regarding his results after wrapping a winter coat around the canister. https://forum.ih8mud.com/showthread.php?t=106734&highlight=lowering+intake+temps I’m not really trying to gain h.p. per say, but I figured the intake system really just couldn’t be in the worst possible place or made of the worst possible material for heat. Considering it’s a metal can and it’s right next to the exhaust, it could probably use any help possible to keep temps somewhat reasonable. So I removed the intake system and wrapped it up in insulation. I used some high temp wrap insulation around the air cleaner can where it faces the exhaust and some wrap around the intake tube. Then used some cheaper insulation around the rest of the intake can and then covered everything in reflective heat tape. I covered almost every exposed surface, including the bottom of the filter canister and the lid. This is the test results and I’m curious how they compare to anyone else. Do you think this actually reduced the intake temp at all? I only ran once with my scangauge and no insulation. At 50 ambient, my highway temps were between 69-73 at highway speed, without insulation. After wrapping everything up, outside temp was still 50. On the highway at speed, the intake hovered between 55-57 degrees, even after a few runs of getting on it and testing out the horse power feature on the scan gauge. I then parked and left the engine running to see what the intake temps would do. It very slowly climbed over about 15 minutes until it got to up about 91 degree. Water temp started at 188 and dropped to 186 during this period. I then opened the hood and see what affect it would have on the intake temperature. To my surprise, it didn’t lower it, and intake temp very slowly kept rising until it reached 96. The engine compartment didn’t seem very hot and the intake can was barely warm to the touch. I closed the hood and headed back out on the highway. At speed, the temps began to steadily drop. After about 5 minutes of driving at 60mph the temp was back down to 58. When I got home, I found that the intake piping and air filter canister was barely warm to the touch. The warmest part, not surprisingly was the front near the exhaust, but it wasn’t too hot to touch. The rear of the filter canister near the fender was barely warm at all. By contrast everything else in the engine compartment was extremely hot. Wire looms and hoses that were right next to the intake tube were almost too hot to touch, while the intake tube was just warm. I don’t have a snorkel. Everything about my engine and intake is stock. I'll try to report back other numbers as I drive it. I'm really curious what the combination of a snorkle and this heat wrap would do, since folks say that a snorkle also lowers intake temps.