To answer the OP question, I’ll differ from those suggesting either a plug (alone) or patch (alone). I saw this same debate about whether you could repair or had to replace a C8 Corvette flat tire, on the Corvette Forums, with some repair shops claiming you could only replace the entire tire and refusing to do otherwise, saying they were high speed/performance tires and you risked disaster with any repair, especially with track use. The consensus from “the gang on the Corvette Forums”, including those who had done repairs at tire shops, was that tire shops insisting on a new tire were just overselling for profit, BUT you needed to do BOTH patch and plug, to be on the safe side and ensure a strong lasting repair. Never having a flat on my Corvettes nor Emira (touch wood), I plan to follow that practice. But that’s just me; we each decide our own preference.