Mildly modified CTS-V supercharged 6.2L engine. Full Kooks exhaust headers cat centre section and cat back mufflers, Grip Tec 2.55” supercharger pulley, solid coupler and reinforced intercooler, Fuel injector clinic 880cc injectors.Has been upgraded to LS3 card style mass air sensor. Dyno tuned to run on 91 octane makes 509hp 545ftlb at 14 psi of boost. It’s a no sunroof car with the Recaro heated and cooled seats, Bose sound with navigation. Newer Continental DWS06+ tires, battery, coolant flush and transmission service in last 10 months. Oil change and new front lower control arms this spring. Very fun fast and comfortable car, please note the door ding I drivers front door. I have too many vehicles so sadly this one needs to find a new home