Is it really worth taking those vent flaps off? I may just get some aftermarket vents at some point. I drove my car yesterday temps int the mid 80's and didn't see any difference in coolant temp.
will taking the blanket off cause water to go though the vents and cause the car to miss out or mess something eletrical up?
the increased heat on the underside of the hood *over time* **may** cause spiderwebs on the paint, both on the underside and topside of the hood.
If you remove your liner, yours may never spiderweb, but its not out of the question. Ive seen it happen before.
Mine has been off for years. It's been off since 2007.