I love the heat that comes through the cloth sport seats. It's very hot and noticeable when it turns on. I imagine leather seats would prevent you from feeling the full effect of the seat heaters?
I actually used mine today on the way to work with the windows down at a brisk California 51°F this morning.
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2008 4Runner Sport Edition 4.7 V8 4WD
1988 FJ62 Landcruiser
President LA County Trailcrew 4x4's
https://www.facebook.com/groups/Trailcrew4x4