I just had 4 new S04's mounted to replace the OEM tires on my 2014 Touring with Sport. I like 'em fine. My son did the installation. The Chevy dealer where he's a tech has a state-of-the-art no-touch machine, so they were reverse mounted. He mentioned that that's important because TPMS or valve stem damage is possible if the tech is unwary or uses the wrong techniques. I mentioned your issue to him just now, he said that if he had a tire go flat that soon after an installation he'd feel obliged to prove that it wasn't something he did, especially in the absence of a puncture.
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