Back in November, I picked up a 2013 SCREW from Delaware that had an aftermarket exhaust, causing it to not pass the CPO process. I was told it was a Borla exhaust and thus, assumed it was until the other day when I decided to crawl under the truck and confirm for myself. Turns out, the muffler clearly reads 'Flowmaster'. However, the exhaust tips have a somewhat stock look to them (twin tips), and to add to that, all the Flowmaster exhausts I see available for the Gen 1 are single-tipped. I'm wondering if the PO kept the stock exhaust, but swapped in a Flowmaster muffler. Is there any easy way to tell? This is the only legible picture I could get, as well as some others showing the exhaust from the side of the truck: Any info would be greatly appreciated. Thanks!