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I was crawling around underneath the 991.1 GT3RS and just forward of the front wheels is this opening with a plastic flap covering most of it.
Thought I remember reading where this is opened up for more downforce anybody recognize it?
I thought somewhere it said if you adjust the AOA of the rear wing you need to adjust these upfront?
That's a .1 RS, the flap in in the .2RS and it is bolted.
For the .1RS if you go for more downforce by adjusting the rear wing, just remove the bolted inner grills below the fender vents. Also, check your car insurance company for deductible amount on replaced windshields..