While I had the car up doing the inspection, I took a couple of minutes to install the GV lip brake duct adapters I picked up earlier this year. I installed the Singular 2.5" ducts last year and was waiting for some proposed GV lip adapters to get produced.
Then I came across these adapters since the others seemed to be on terminal hold. I gave them a shot and while not perfect, they look like they'll do the job of helping cool the big 11.75" Stoptechs.