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For those that have these, do they help with the back or is just the bottom? Test drove a car today, and back started to get warm with ventilated seats on.
I originally made these very quickly, and never refined them or put much thought into them since they were only ever meant to be a simple and quick fix for the Lexus cooling problem. But due to their popularity, I went ahead and revised these so that they are now a one-piece unit, to make them easier to print. Most likely this revision will have a bit better airflow compared to the old design, but I am sure both designs are fairly comparable to each other within reason.
I updated the file to include the new one-piece design, and also I will leave the old 2 piece design in the file as well, in case anyone has that preference. Going forward, if anyone purchases these from my store, I will be printing and shipping out the new one-piece revision.