Late nights paid off for Stephen when we got his supercharged 2011 CTS-V on the dyno rollers to dial in the nitrous and tune. Using a combination of SCT, HP Tuners for logging, and NX Maximizer we were able to achieve 665HP at wheels and 665TQ through the automatic transmission. The setup consists of a pullied CTS-V, cat-delete on the exhaust, and progressive nitrous plate system with standalone fuel system.