After looking at wolfsnout kit I decided to just do my own tunnel cool down project with the idea I could use thicker insulation and an actual heat shield. I used 1/2" neoprene and an actual foil-faced heat shield. With that, I also had some header tape as well as some All-Weather Gorilla tape. I was a Democrat with the tape - very liberal 
I think the end result turned out great plus install was easier as I never fully removed the driver side tunnel cover. In total disclosure I did spend more than the wolfsnout kit as decent heat-shield is spendy - not like 2x4 or dimensional lumber spendy but enough to cut into my tapper budget that evening.
I did also tackle the firewall, with the driver-side being the most porous, with a combination of the just the neoprene and Gorilla tape. Not near the project the tunnel was but probably just as important.
I drove it for about an hour after, at varying speeds, I really never felt any heat from the tunnel either by touch or radiating. My Diet Dew stayed nice and cold In all honesty though it was only 68 out so a far cry from 85 when we felt like we were sitting in an oven. With that stated I've felt it much warmer at cooler temps prior to the insulation work.
Altogether took just over 4hrs or like 7 Busch Lattes. I didn't think it was that bad? for reference, I spent more time wiring both my light bars which was more like a 10 Busch Latte project
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I think the end result turned out great plus install was easier as I never fully removed the driver side tunnel cover. In total disclosure I did spend more than the wolfsnout kit as decent heat-shield is spendy - not like 2x4 or dimensional lumber spendy but enough to cut into my tapper budget that evening. I did also tackle the firewall, with the driver-side being the most porous, with a combination of the just the neoprene and Gorilla tape. Not near the project the tunnel was but probably just as important.
I drove it for about an hour after, at varying speeds, I really never felt any heat from the tunnel either by touch or radiating. My Diet Dew stayed nice and cold
In all honesty though it was only 68 out so a far cry from 85 when we felt like we were sitting in an oven. With that stated I've felt it much warmer at cooler temps prior to the insulation work.Altogether took just over 4hrs or like 7 Busch Lattes. I didn't think it was that bad? for reference, I spent more time wiring both my light bars which was more like a 10 Busch Latte project
