Give Havik Performance a call. They do their own custom twin turbo kits and they also do Roe and Paxton installs and tuning. The only shop I let touch my supercharged Vipers. I’ve personally seen their twin turbo kits and they are sick. For a good twin turbo kit you’re gonna spend a lot more money than if you would go the supercharged route. But you can make a lot more power with turbos.