I saw 4 Stingers doing runs at Castrol this last Friday (one was parked in the lot, white, I checked and it wasn't my old one haha). All of them were having a terrible time, lots of low 14's and high 13's. Best I saw (maybe he did better later) was 13.21, and I heard he has a bit more than just a tune. My best on Map 2 with intakes only was 13.19, so maybe I was right on par, and maybe Castrol is just a terribly slow track. DA was about 3700ft on my best runs, ran a 12.71 in the M240i myself. It's no faster than the Stinger, but it launches so much harder, you can actually feel boost build in launch control.